CVE-2026-11766

HIGHPre-NVD 8.08.0—
EchelonGraph scoreMEDIUM confidence

Score 8.0 from GitHub Security Advisory (severity: HIGH) published 2026-07-06. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
8.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.0Exploit: None knownExposed: 0

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

The Ultimate Member WordPress plugin before 2.12.0 does not properly sanitise and escape the value of custom textarea profile fields before outputting it on user profiles, allowing authenticated users with Subscriber-level access and above to store JavaScript that executes when any user, including an administrator, views the affected profile.

CVSS v3
8.0
EG Score
8.0(medium)
EG Risk
36(Track)
EG Risk 36/100SSVC: 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
Severity80% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
35%
KEV
Not listed

Published

July 6, 2026

Last Modified

July 6, 2026

Advisory Details (1)

Auto-updated Jul 6, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Ultimate Member < 2.12.0 – Subscriber+ Stored XSS via Custom Textarea Profile Fields | CVE 2026-11766 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/96adb2d3-af34-4455-97d4-90af58049e78/

Vendor Advisories for CVE-2026-11766(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 75× 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 190 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-11766?
CVE-2026-11766 is a high vulnerability published on July 6, 2026. The Ultimate Member WordPress plugin before 2.12.0 does not properly sanitise and escape the value of custom textarea profile fields before outputting it on user profiles, allowing authenticated users with Subscriber-level access and above to store JavaScript that executes when any user, including…
When was CVE-2026-11766 disclosed?
CVE-2026-11766 was first published in the National Vulnerability Database on July 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-11766 actively exploited?
CVE-2026-11766 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 65.2% of all scored CVEs.
What is the CVSS score of CVE-2026-11766?
CVE-2026-11766 has a CVSS v3.1 base score of 8.0 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-11766?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-11766, 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.

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