CVE-2026-15450

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-08-01. A secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.1EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 8.1Exploit: None knownExposed services: Not assessed

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

The Nex Forms – Ultimate Form Builder – Lite plugin for WordPress is vulnerable to arbitrary file deletion via path traversal in versions up to, and including, 9.2.3. This is due to the delete_file() AJAX handler retrieving a file path from the database and passing it directly to unlink() with no validation (no realpath(), basename(), or allowlist check), combined with the insert_record() AJAX handler that lets the same authenticated user store an arbitrary value in the target 'location' column (wp_kses() only strips HTML tags and does not neutralize path traversal or absolute paths). This makes it possible for authenticated attackers, with admin-level access and above, to delete arbitrary files on the affected site's server, including wp-config. When the plugin's user-level option is configured to something else, this may be exploitable with lower privileges.

CVSS v3
8.1
EG Score
8.1HIGHmedium confidence
EG Risk
37
EG Risk 37/100CISA 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
Severity81% × 45%
Exploitation1% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.6%
EPSS %ILE
46th
KEV
Not listed

CISA SSVCTrack at every mission impact level.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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 1, 2026

Last Modified

August 12, 2026

References (5)

Vendor Advisories for CVE-2026-15450(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 17× in last 7d / 84× 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 218 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-15450?
CVE-2026-15450 is a high vulnerability published on August 1, 2026. The Nex Forms – Ultimate Form Builder – Lite plugin for WordPress is vulnerable to arbitrary file deletion via path traversal in versions up to, and including, 9.2.3. This is due to the deletefile() AJAX handler retrieving a file path from the database and passing it directly to unlink() with no…
When was CVE-2026-15450 disclosed?
CVE-2026-15450 was first published on August 1, 2026, with the most recent update on August 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15450 actively exploited?
CVE-2026-15450 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (46th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-15450?
CVE-2026-15450 has a CVSS base score of 8.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-15450?
No fix for CVE-2026-15450 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-2026-15450 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-15450

Explore →

Is Your Infrastructure Affected by CVE-2026-15450?

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

Book a Demo →Browse All CVEs