CVE-2026-5524

CRITICALPre-NVD 9.89.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-02. The CNA's CVSS baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: the CNA's CVSS, EPSS, GitHub Security Advisory
Trending — 3 sources updated this weekElevated
9.8EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • Public exploit or proof-of-concept code is available
CISA-KEV: Not listedEPSS PROB: 3.5%CVSS: 9.8Exploit: Public PoCExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

The CVE record's CNA (Wordfence) lists Divi Engine Divi Form Builder versions up to and including 5.1.8 as affected. No release containing a fix is confirmed on record.

The Divi Form Builder plugin for WordPress is vulnerable to Arbitrary File Upload leading to...

The Divi Form Builder plugin for WordPress is vulnerable to Arbitrary File Upload leading to Remote Code Execution in all versions up to and including 5.1.8. This is due to insufficient file extension validation in the do_image_upload() function where user-supplied input from the acceptFileTypes POST parameter is directly interpolated into a regular expression used to validate uploaded files. Attackers can specify PHP-executable extensions such as .phtml, .phar, .php5, or .php7 to bypass the plugin's .htaccess protection which only blocks .php files specifically. Additionally, on Nginx-based servers, the .htaccess protection is completely ineffective as Nginx does not process .htaccess files. This makes it possible for unauthenticated attackers (who can obtain a nonce from any public page containing a form) to upload executable PHP files to the publicly accessible /wp-content/uploads/de_fb_uploads/ directory and achieve Remote Code Execution by accessing the uploaded file via HTTP. The vulnerability was partially patched in version 5.1.3.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
75
EG Risk 75/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed (value × EchelonGraph’s weight)
Severity98% × 45%
The EG Score, 9.8 of 10.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
3.5%
EPSS %ILE
88th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)3 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

July 2, 2026

Last Modified

July 2, 2026

Vendor Advisories for CVE-2026-5524(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 16× in last 7d / 41× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 419 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 319 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-14 01:56 UTCEG score recompute
  2. 2026-10-14 01:56 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  3. 2026-10-13 16:34 UTCEPSS rescoreEPSS 3.5% · 88th percentile
  4. 2026-10-12 22:12 UTCEG score recompute
  5. 2026-10-12 22:12 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  6. 2026-10-12 16:34 UTCEPSS rescoreEPSS 3.5% · 88th percentile
  7. 2026-10-12 15:55 UTCEG score recompute
  8. 2026-10-12 06:53 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  9. 2026-10-11 19:39 UTCEG score recompute
  10. 2026-10-11 16:54 UTCEG score recompute
  11. 2026-10-11 14:17 UTCEG score recompute
  12. 2026-10-11 13:49 UTCEPSS rescoreEPSS 3.5% · 88th percentile
  13. 2026-10-10 20:00 UTCEPSS rescoreEPSS 3.5% · 88th percentile
  14. 2026-10-09 20:07 UTCEPSS rescoreEPSS 3.5% · 88th percentile
  15. 2026-10-08 17:13 UTCEPSS rescoreEPSS 3.5% · 88th percentile
  16. 2026-10-07 23:48 UTCEPSS rescoreEPSS 3.5% · 88th percentile
  17. 2026-10-06 15:18 UTCEPSS rescoreEPSS 3.5% · 88th percentile
  18. 2026-10-05 17:43 UTCEPSS rescoreEPSS 3.5% · 88th percentile
  19. 2026-10-04 23:22 UTCEPSS rescoreEPSS 3.5% · 88th percentile
  20. 2026-10-03 14:26 UTCEPSS rescoreEPSS 3.5% · 88th percentile
  21. 2026-10-02 17:56 UTCEPSS rescoreEPSS 3.5% · 88th percentile
  22. 2026-10-01 19:50 UTCEPSS rescoreEPSS 3.5% · 88th percentile
  23. 2026-09-30 15:03 UTCEPSS rescoreEPSS 3.5% · 88th percentile
  24. 2026-09-28 13:51 UTCEPSS rescoreEPSS 3.5% · 88th percentile
  25. 2026-09-26 15:59 UTCEPSS rescoreEPSS 3.5% · 88th percentile
Show 75 more
  1. 2026-09-24 14:04 UTCEPSS rescoreEPSS 3.5% · 88th percentile
  2. 2026-09-23 17:54 UTCEPSS rescoreEPSS 3.5% · 88th percentile
  3. 2026-09-23 11:09 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  4. 2026-09-23 06:39 UTCEG score recompute
  5. 2026-09-23 06:39 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  6. 2026-09-20 20:16 UTCEPSS rescoreEPSS 3.5% · 88th percentile
  7. 2026-09-18 19:28 UTCEPSS rescoreEPSS 3.5% · 88th percentile
  8. 2026-09-18 10:50 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  9. 2026-09-18 06:15 UTCEG score recompute
  10. 2026-09-18 06:15 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  11. 2026-09-17 19:31 UTCEPSS rescoreEPSS 3.5% · 88th percentile
  12. 2026-09-16 14:08 UTCEPSS rescoreEPSS 3.5% · 88th percentile
  13. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  14. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  15. 2026-09-14 08:50 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  16. 2026-09-14 04:33 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  17. 2026-09-14 00:16 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  18. 2026-09-13 17:50 UTCEG score recompute
  19. 2026-09-13 17:50 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  20. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  21. 2026-09-13 13:22 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  22. 2026-09-13 09:01 UTCEG score recompute
  23. 2026-09-13 09:01 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  24. 2026-09-12 14:16 UTCEG score recompute
  25. 2026-09-12 14:16 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  26. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  27. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  28. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  29. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  30. 2026-09-06 14:20 UTCEG score recompute
  31. 2026-09-06 14:20 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  32. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.9% · 58th percentile
  33. 2026-09-06 04:55 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  34. 2026-09-05 23:54 UTCEG score recompute
  35. 2026-09-05 23:54 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  36. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  37. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  38. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  39. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  40. 2026-08-31 01:28 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  41. 2026-08-30 21:11 UTCEG score recompute
  42. 2026-08-30 21:11 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  43. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  44. 2026-08-30 16:54 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  45. 2026-08-30 11:23 UTCEG score recompute
  46. 2026-08-30 11:23 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  47. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  48. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  49. 2026-08-28 02:46 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  50. 2026-08-27 22:16 UTCEG score recompute
  51. 2026-08-27 22:16 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  52. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  53. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  54. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.9% · 57th percentile
  55. 2026-08-25 13:45 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  56. 2026-08-25 05:29 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  57. 2026-08-25 01:12 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  58. 2026-08-24 20:56 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  59. 2026-08-24 14:36 UTCEG score recompute
  60. 2026-08-24 14:36 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  61. 2026-08-24 10:18 UTCEG score recompute
  62. 2026-08-24 10:18 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  63. 2026-08-24 05:46 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  64. 2026-08-24 01:27 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  65. 2026-08-23 21:09 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  66. 2026-08-23 16:52 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  67. 2026-08-23 12:36 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  68. 2026-08-23 08:19 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  69. 2026-08-23 04:01 UTCEG score recompute
  70. 2026-08-23 04:01 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  71. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  72. 2026-08-22 23:43 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  73. 2026-08-22 19:26 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  74. 2026-08-22 15:04 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8
  75. 2026-08-22 10:47 UTCGHSA enrichmentGHSA-7ch9-34jx-wqhr · GitHub severity CRITICAL · GitHub CVSS 9.8

Publicly available exploits

(2 references)

Public exploit code is referenced for this CVE (1 GitHub PoC), as is 1 Nuclei detection template. A detection template checks whether a system is affected; it is not necessarily exploit code. No fix is confirmed yet, so defenders should restrict or isolate affected systems accordingly until one is published.

  • Nucleihttp/cves/2026/CVE-2026-5524.yaml
    Published Sep 15, 2026

    Divi Form Builder <=5.1.8 - Unauthenticated Arbitrary File Upload RCE

    Open source ↗
  • GitHub PoCcaterscam/CVE-2026-5524-PoC
    Published Jul 4, 2026
    Open source ↗

Frequently asked(5)

What is CVE-2026-5524?
CVE-2026-5524 is a critical-severity vulnerability; its CVE record was published on July 2, 2026. The Divi Form Builder plugin for WordPress is vulnerable to Arbitrary File Upload leading to... The Divi Form Builder plugin for WordPress is vulnerable to Arbitrary File Upload leading to Remote Code Execution in all versions up to and including 5.1.8. This is due to insufficient file extension…
When was the CVE record for CVE-2026-5524 published?
The CVE record for CVE-2026-5524 was published on July 2, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of July 2, 2026; the record at its source may have been updated since.
Is CVE-2026-5524 actively exploited?
CVE-2026-5524 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.5% probability of exploitation in the next 30 days (88th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-5524?
CVE-2026-5524 has a CVSS base score of 9.8 (the CNA's own assessment, by github_m; NVD's own analysis pending).
How do I remediate CVE-2026-5524?
No fix for CVE-2026-5524 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The CVE record's CNA (Wordfence) lists Divi Engine Divi Form Builder versions up to and including 5.1.8 as affected. No release containing a fix is confirmed on record. The vendor advisories EchelonGraph has for CVE-2026-5524 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-5524

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