CVE-2021-24823 json
Support Board < 3.3.6 - Arbitrary File Deletion via CSRF
published 2022-02-28 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11735
- cvss
- 8.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 46%
- public exploits
- 0
- none known
Summary
The Support Board WordPress plugin before 3.3.6 does not have any CSRF checks in actions handled by the include/ajax.php file, which could allow attackers to make logged in users do unwanted actions. For example, make an admin delete arbitrary files
Patch / fix
- schiocco support_board 3.3.6
Exploit prediction
0.55% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/1bdebd9e-a7f2-4f55-b5b0-185eb619ebaf referenced PoC, tagged "exploit" by a source, unverified
- noob3xploiter.medium.com https://noob3xploiter.medium.com/support-board-3-3-4-arbitrary-file-deletion-to-remote-code-execution-da4c45b45c83 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H |
| NVD | 2.0 | 4.9 | AV:N/AC:M/Au:S/C:N/I:P/A:P |
Affected products
- Unknown Support Board
Classification
- Weakness
-
- CWE-352 Cross-Site Request Forgery
- Technology feeds
References
-
wpscan.com
/vulnerability/1bdebd9e-a7f2-4f55-b5b0-185eb619ebaf
exploit, third-party-advisory
-
noob3xploiter.medium.com
/support-board-3-3-4-arbitrary-file-deletion-to-remote-code-execution-da4c45b45c83
exploit, third-party-advisory
Sources
- CVE List CVE-2021-24823
- NVD CVE-2021-24823
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.