CVE-2026-79996 json
User Registration & Membership < 5.2.6 - Authenticated Privilege Escalation via Login Settings
published 2026-08-28 2 mo ago modified 2026-08-28 2 mo ago also EUVD-2026-67575
- cvss
- 7.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 40%
- public exploits
- 0
- none known
Summary
The User Registration & Membership WordPress plugin before 5.2.6 does not perform a capability check when saving its login settings, allowing authenticated users who have been granted a User Registration & Membership WordPress plugin before 5.2.6 management capability but not full administrator access to change arbitrary site options and escalate their privileges to administrator.
Patch / fix
- Unknown User Registration & Membership 5.2.6
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 2 mo ago
Exploit prediction
0.46% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/609bbb7c-c19a-4c72-8cef-95598a2cfc0d/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Unknown User Registration & Membership
Classification
- Weakness
-
- CWE-269 Improper Privilege Management
- Technology feeds
References
-
wpscan.com
/vulnerability/609bbb7c-c19a-4c72-8cef-95598a2cfc0d/
exploit, vdb-entry, technical-description
Sources
- CVE List CVE-2026-79996
- NVD CVE-2026-79996
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.