CVE-2021-24404 json
WP-Board <= 1.1 (beta) - Unauthenticated SQL Injection
published 2021-09-20 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11316
- cvss
- 8.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 4.7%
- EPSS 4.7% chance of exploitation in 30 days, percentile 91%
- public exploits
- 0
- none known
Summary
The options.php file of the WP-Board WordPress plugin through 1.1 beta accepts a postid parameter which is not sanitised, escaped or validated before inserting to a SQL statement, leading to SQL injection. This is a time based SQLI and in the same function vulnerable parameter is passed twice so if we pass time as 5 seconds it takes 10 seconds to return since the query ran twice.
Exploit prediction
4.71% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/a86240e1-f064-4972-9f97-6b349fdd57f6 referenced PoC, tagged "exploit" by a source, unverified
- codevigilant.com https://codevigilant.com/disclosure/2021/wp-plugin-wp-board/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.5 | AV:N/AC:L/Au:S/C:P/I:P/A:P |
Affected products
- Unknown WP-Board
Classification
- Weakness
-
- CWE-89 Improper Neutralization of Special Elements used in an SQL Command
- Technology feeds
References
-
wpscan.com
/vulnerability/a86240e1-f064-4972-9f97-6b349fdd57f6
exploit, third-party-advisory
-
codevigilant.com
/disclosure/2021/wp-plugin-wp-board/
exploit, third-party-advisory
Sources
- CVE List CVE-2021-24404
- NVD CVE-2021-24404
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.