CVE-2026-3850

MEDIUMPre-NVD 6.46.4—
EchelonGraph scoreMEDIUM confidence

Score 6.4 from GitHub Security Advisory published 2026-09-02. A secondary CVSS source baseline 6.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 6.4Exploit: 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 Divi theme for WordPress is vulnerable to Stored Cross-Site Scripting via the redirect_url parameter of the et_pb_contact_form shortcode in all versions up to, and including, 4.27.6. This is due to the redirect_url attribute being sanitized with esc_attr() instead of esc_url() before being rendered into the data-redirect_url HTML data attribute. Additionally, redirect_url is absent from the hardcoded $url_options array in class-et-builder-element.php, so it does not receive esc_url_raw() sanitization during shortcode parsing. After a successful form submission, client-side JavaScript reads this data attribute and passes it directly to window.location.href, executing arbitrary JavaScript from a javascript: URI. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that execute whenever a user submits the contact form.

CVSS v3
6.4
EG Score
6.4MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100CISA 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
Severity64% × 45%
Exploitation0% × 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
0.3%
EPSS %ILE
16th
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

September 2, 2026

Last Modified

September 4, 2026

Advisory Details (1)

Auto-updated Sep 2, 2026
No patch confirmed yet.
generic

All Divi Changelogs | Divi Changelog

https://www.divichangelog.com/divi-update

Vendor Advisories for CVE-2026-3850(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 15× in last 7d / 76× 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.

  1. 2026-10-04 21:39 UTCGHSA enrichment
  2. 2026-10-03 21:17 UTCEG score recompute
  3. 2026-10-03 21:17 UTCGHSA enrichment
  4. 2026-10-03 14:25 UTCEPSS rescore
  5. 2026-10-02 20:55 UTCEG score recompute
  6. 2026-10-02 20:55 UTCGHSA enrichment
  7. 2026-10-01 19:50 UTCEPSS rescore
  8. 2026-10-01 19:47 UTCGHSA enrichment
  9. 2026-09-30 19:24 UTCEG score recompute
  10. 2026-09-30 19:24 UTCGHSA enrichment
  11. 2026-09-30 15:03 UTCEPSS rescore
  12. 2026-09-29 14:00 UTCEG score recompute
  13. 2026-09-29 14:00 UTCGHSA enrichment
  14. 2026-09-28 13:36 UTCEG score recompute
  15. 2026-09-28 13:36 UTCGHSA enrichment
  16. 2026-09-27 13:48 UTCEPSS rescore
  17. 2026-09-27 13:14 UTCEG score recompute
  18. 2026-09-27 13:14 UTCGHSA enrichment
  19. 2026-09-26 15:58 UTCEPSS rescore
  20. 2026-09-26 12:52 UTCEG score recompute
  21. 2026-09-26 12:52 UTCGHSA enrichment
  22. 2026-09-26 00:26 UTCEPSS rescore
  23. 2026-09-25 12:30 UTCEG score recompute
  24. 2026-09-25 12:30 UTCGHSA enrichment
  25. 2026-09-24 12:09 UTCEG score recompute
Show 65 more
  1. 2026-09-24 12:09 UTCGHSA enrichment
  2. 2026-09-23 11:47 UTCEG score recompute
  3. 2026-09-23 11:47 UTCGHSA enrichment
  4. 2026-09-22 11:26 UTCEG score recompute
  5. 2026-09-22 11:26 UTCGHSA enrichment
  6. 2026-09-21 11:03 UTCEG score recompute
  7. 2026-09-21 11:03 UTCGHSA enrichment
  8. 2026-09-20 20:15 UTCEPSS rescore
  9. 2026-09-20 10:42 UTCEG score recompute
  10. 2026-09-20 10:42 UTCGHSA enrichment
  11. 2026-09-19 10:10 UTCEG score recompute
  12. 2026-09-19 10:10 UTCGHSA enrichment
  13. 2026-09-18 19:28 UTCEPSS rescore
  14. 2026-09-18 19:28 UTCEPSS rescore
  15. 2026-09-18 09:49 UTCEG score recompute
  16. 2026-09-18 09:49 UTCGHSA enrichment
  17. 2026-09-17 19:30 UTCEPSS rescore
  18. 2026-09-17 09:27 UTCEG score recompute
  19. 2026-09-17 09:27 UTCGHSA enrichment
  20. 2026-09-16 14:08 UTCEPSS rescore
  21. 2026-09-16 09:05 UTCEG score recompute
  22. 2026-09-16 09:05 UTCGHSA enrichment
  23. 2026-09-16 05:15 UTCEPSS rescore
  24. 2026-09-15 07:24 UTCEG score recompute
  25. 2026-09-15 07:24 UTCGHSA enrichment
  26. 2026-09-15 03:11 UTCEPSS rescore
  27. 2026-09-14 07:02 UTCEG score recompute
  28. 2026-09-14 07:02 UTCGHSA enrichment
  29. 2026-09-13 16:47 UTCEPSS rescore
  30. 2026-09-13 06:40 UTCEG score recompute
  31. 2026-09-13 06:40 UTCGHSA enrichment
  32. 2026-09-12 15:01 UTCEPSS rescore
  33. 2026-09-12 06:18 UTCEG score recompute
  34. 2026-09-12 06:18 UTCGHSA enrichment
  35. 2026-09-11 14:53 UTCEPSS rescore
  36. 2026-09-11 09:37 UTCEPSS rescore
  37. 2026-09-11 05:56 UTCEG score recompute
  38. 2026-09-11 05:56 UTCGHSA enrichment
  39. 2026-09-10 09:34 UTCEPSS rescore
  40. 2026-09-10 05:34 UTCGHSA enrichment
  41. 2026-09-09 05:13 UTCEG score recompute
  42. 2026-09-09 05:12 UTCGHSA enrichment
  43. 2026-09-08 22:00 UTCEPSS rescore
  44. 2026-09-08 04:51 UTCEG score recompute
  45. 2026-09-08 04:51 UTCGHSA enrichment
  46. 2026-09-07 16:01 UTCEPSS rescore
  47. 2026-09-07 04:29 UTCEG score recompute
  48. 2026-09-07 04:29 UTCGHSA enrichment
  49. 2026-09-06 13:47 UTCEPSS rescore
  50. 2026-09-06 04:07 UTCEG score recompute
  51. 2026-09-06 04:07 UTCGHSA enrichment
  52. 2026-09-05 03:45 UTCEG score recompute
  53. 2026-09-05 03:45 UTCGHSA enrichment
  54. 2026-09-04 05:06 UTCEPSS rescore
  55. 2026-09-04 03:23 UTCEG score recompute
  56. 2026-09-04 03:23 UTCGHSA enrichment
  57. 2026-09-04 02:34 UTCEG score recompute
  58. 2026-09-04 02:34 UTCGHSA enrichment
  59. 2026-09-03 14:36 UTCGHSA enrichment
  60. 2026-09-02 14:14 UTCEG score recompute
  61. 2026-09-02 14:13 UTCGHSA enrichment
  62. 2026-09-02 14:12 UTCEPSS rescore
  63. 2026-09-02 07:35 UTCEG score recompute
  64. 2026-09-02 06:41 UTCEG score recompute
  65. 2026-09-02 06:40 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-3850?
CVE-2026-3850 is a medium vulnerability published on September 2, 2026. The Divi theme for WordPress is vulnerable to Stored Cross-Site Scripting via the redirecturl parameter of the etpbcontactform shortcode in all versions up to, and including, 4.27.6. This is due to the redirecturl attribute being sanitized with escattr() instead of escurl() before being rendered…
When was CVE-2026-3850 disclosed?
CVE-2026-3850 was first published on September 2, 2026, with the most recent update on September 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-3850 actively exploited?
CVE-2026-3850 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (16th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-3850?
CVE-2026-3850 has a CVSS base score of 6.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-3850?
No fix for CVE-2026-3850 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-2026-3850 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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