CVE-2021-24537 json
Similar Posts <= 3.1.5 - Admin+ Arbitrary PHP Code Execution
published 2021-11-08 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11449
- cvss
- 7.2
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.6%
- EPSS 1.6% chance of exploitation in 30 days, percentile 75%
- public exploits
- 0
- none known
Summary
The Similar Posts WordPress plugin through 3.1.5 allow high privilege users to execute arbitrary PHP code in an hardened environment (ie with DISALLOW_FILE_EDIT, DISALLOW_FILE_MODS and DISALLOW_UNFILTERED_HTML set to true) via the 'widget_rrm_similar_posts_condition' widget setting of the plugin.
Exploit prediction
1.56% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/0d6b46cb-5244-486f-ad70-4023907ac9eb referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.0 | AV:N/AC:M/Au:S/C:P/I:P/A:P |
Affected products
- Unknown Similar Posts – Best Related Posts Plugin for WordPress
Classification
- Weakness
-
- CWE-94 Improper Control of Generation of Code
- Technology feeds
References
-
wpscan.com
/vulnerability/0d6b46cb-5244-486f-ad70-4023907ac9eb
exploit, third-party-advisory
Sources
- CVE List CVE-2021-24537
- NVD CVE-2021-24537
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.