CVE-2026-73532

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-13. A secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
9.8EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 9.8Exploit: None knownExposed services: Not assessed

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

Fluent Forms Pro 6.2.7 contains an embedded malicious code vulnerability introduced via a tampered plugin build served through a decommissioned update server. The tampered build introduced a rogue PHP file (libs/class-license-sync.php), loaded via a require_once directive added to fluentformpro.php, that established a backdoor REST API endpoint, dropped persistent PHP files in mu-plugins and uploads directories, installed a passwordless administrator account, and registered scheduled tasks that survived plugin removal.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
59
EG Risk 59/100CISA SSVC

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
Severity98% × 45%
Exploitation1% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
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
0.7%
EPSS %ILE
50th
KEV
Not listed

CISA SSVCTrack 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). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 13, 2026

Last Modified

September 9, 2026

Advisory Details (4)

Auto-updated Sep 30, 2026
No patch confirmed yet.
generic

Fluent Forms Pro 6.2.7 Embedded Malicious Code via Tampered Plugin Build | Advisories | VulnCheck

https://www.vulncheck.com/advisories/fluent-forms-pro-embedded-malicious-code-via-tampered-plugin-build
generic

WPManageNinja Security Incident: July 31, 2026

https://wpmanageninja.com/security-incident-on-31-july-2026/
generic

Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder – WordPress plugin | WordPress.org

https://wordpress.org/plugins/fluentform/
generic

Backdoor in WordPress Fluent Forms Pro Add On Pack Plugin - Patchstack

https://patchstack.com/database/wordpress/plugin/fluentformpro/vulnerability/wordpress-fluent-forms-pro-add-on-pack-plugin-6-2-7-6-2-7-remote-code-execution-vulnerability

Vendor Advisories for CVE-2026-73532(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 31× in last 7d / 182× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

Showing the most recent 100 of 365 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-73532?
CVE-2026-73532 is a critical vulnerability published on August 13, 2026. Fluent Forms Pro 6.2.7 contains an embedded malicious code vulnerability introduced via a tampered plugin build served through a decommissioned update server. The tampered build introduced a rogue PHP file (libs/class-license-sync.php), loaded via a require_once directive added to…
When was CVE-2026-73532 disclosed?
CVE-2026-73532 was first published on August 13, 2026, with the most recent update on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73532 actively exploited?
CVE-2026-73532 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (50th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73532?
CVE-2026-73532 has a CVSS base score of 9.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-73532?
No fix for CVE-2026-73532 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 vendor advisories EchelonGraph has for CVE-2026-73532 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-73532

Explore →

Is Your Infrastructure Affected by CVE-2026-73532?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs