CVE-2021-24393 json
Comment Highlighter <= 0.13 - Authenticated SQL Injection
published 2021-09-06 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11305
- cvss
- 7.2
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.5%
- EPSS 1.5% chance of exploitation in 30 days, percentile 75%
- public exploits
- 0
- none known
Summary
A c GET parameter of the Comment Highlighter WordPress plugin through 0.13 is not properly sanitised, escaped or validated before inserting to a SQL statement, leading to SQL injection.
Exploit prediction
1.55% 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/24969766-19e3-47cd-b32c-6c3330651d1f referenced PoC, tagged "exploit" by a source, unverified
- codevigilant.com https://codevigilant.com/disclosure/2021/wp-plugin-comment-highlighter/ 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 | 6.5 | AV:N/AC:L/Au:S/C:P/I:P/A:P |
Affected products
- Unknown Comment Highlighter
Classification
- Weakness
-
- CWE-89 Improper Neutralization of Special Elements used in an SQL Command
- Technology feeds
References
-
wpscan.com
/vulnerability/24969766-19e3-47cd-b32c-6c3330651d1f
exploit, third-party-advisory
-
codevigilant.com
/disclosure/2021/wp-plugin-comment-highlighter/
exploit, third-party-advisory
Sources
- CVE List CVE-2021-24393
- NVD CVE-2021-24393
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.