CVE-2026-5524

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

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: cna:github_m, epss, ghsa
Trending — 3 sources updated this weekElevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 3%CVSS: 9.8Exploit: Elevated riskExposed: 0

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

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
9.8(medium)
EG Risk
65(Track*)
EG Risk 65/100SSVC: Track*

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%
Exploitation40% × 40%
Automatability30% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
3%
EPSS %ILE
89%
KEV
Not listed

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 9× in last 7d / 68× 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 389 total refreshes for this CVE.

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

Publicly available exploits

(2 references)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCcaterscam/CVE-2026-5524-PoC
    First seen Jul 4, 2026
    Open source ↗
  • Nucleihttp/cves/2026/CVE-2026-5524.yaml
    First seen Jan 1, 2026

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

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-5524?
CVE-2026-5524 is a critical vulnerability 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 CVE-2026-5524 disclosed?
CVE-2026-5524 was first published in the National Vulnerability Database on July 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-5524 actively exploited?
CVE-2026-5524 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3% probability of exploitation in the next 30 days, which ranks it in the top 11.4% of all scored CVEs.
What is the CVSS score of CVE-2026-5524?
CVE-2026-5524 has a CVSS v4.0 base score of 9.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-5524?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-5524, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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