CVE-2026-11961

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

Score 8.1 from GitHub Security Advisory (severity: HIGH) published 2026-07-17. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.1Exploit: None knownExposed: 0

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

The User Registration & Membership WordPress plugin before 5.2.3 does not validate that the membership tier submitted during public registration is one of the tiers allowed by the registration form before assigning that tier's associated user role, allowing unauthenticated users to register into an arbitrary published membership tier and obtain its role — up to administrator when such a tier exists.

CVSS v3
8.1
EG Score
8.1(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity81% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
31%
KEV
Not listed

Published

July 17, 2026

Last Modified

July 17, 2026

Advisory Details (1)

Auto-updated Jul 17, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

User Registration & Membership < 5.2.3 – Unauthenticated Privilege Escalation via Unbound members_data Membership ID | CVE 2026-11961 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/2ffab574-8626-472e-b6e4-09bcbaa62349/

Vendor Advisories for CVE-2026-11961(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 20× in last 7d / 112× 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 469 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-11961?
CVE-2026-11961 is a high vulnerability published on July 17, 2026. The User Registration & Membership WordPress plugin before 5.2.3 does not validate that the membership tier submitted during public registration is one of the tiers allowed by the registration form before assigning that tier's associated user role, allowing unauthenticated users to register into an…
When was CVE-2026-11961 disclosed?
CVE-2026-11961 was first published in the National Vulnerability Database on July 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-11961 actively exploited?
CVE-2026-11961 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 68.8% of all scored CVEs.
What is the CVSS score of CVE-2026-11961?
CVE-2026-11961 has a CVSS v3.1 base score of 8.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-11961?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-11961, 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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