CVE-2021-36879 json
WordPress uListing plugin <= 2.0.5 - Unauthenticated Privilege Escalation vulnerability
published 2021-09-27 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-23455
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.2%
- EPSS 2.2% chance of exploitation in 30 days, percentile 82%
- public exploits
- 0
- none known
Summary
Unauthenticated Privilege Escalation vulnerability in WordPress uListing plugin (versions <= 2.0.5). Possible if WordPress configuration allows user registration.
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 19 mo ago
Exploit prediction
2.18% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- patchstack.com https://patchstack.com/database/vulnerability/ulisting/wordpress-ulisting-plugin-2-0-5-unauthenticated-privilege-escalation-vulnerability referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Affected products
- StylemixThemes uListing (WordPress plugin)
Classification
- Weakness
-
- CWE-264 Permissions, Privileges, and Access Controls
- Technology feeds
References
-
patchstack.com
/database/vulnerability/ulisting/wordpress-ulisting-plugin-2-0-5-unauthenticated-privilege-escalation-vulnerab
exploit, third-party-advisory
-
wordpress.org
/plugins/ulisting/#developers
product, third-party-advisory
Sources
- CVE List CVE-2021-36879
- NVD CVE-2021-36879
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.