High severity7.5NVD Advisory· Published May 17, 2021· Updated Jun 17, 2026
CVE-2021-24295
CVE-2021-24295
Description
It was possible to exploit an Unauthenticated Time-Based Blind SQL Injection vulnerability in the Spam protection, AntiSpam, FireWall by CleanTalk WordPress Plugin before 5.153.4. The update_log function in lib/Cleantalk/ApbctWP/Firewall/SFW.php included a vulnerable query that could be injected via the User-Agent Header by manipulating the cookies set by the Spam protection, AntiSpam, FireWall by CleanTalk WordPress plugin before 5.153.4, sending an initial request to obtain a ct_sfw_pass_key cookie and then manually setting a separate ct_sfw_passed cookie and disallowing it from being reset.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
4cpe:2.3:a:cleantalk:spam_protection\,_antispam\,_firewall:*:*:*:*:*:wordpress:*:*+ 2 more
- cpe:2.3:a:cleantalk:spam_protection\,_antispam\,_firewall:*:*:*:*:*:wordpress:*:*range: <5.153.4
- (no CPE)range: <5.153.4
- (no CPE)range: 5.153.4
- Range: <5.153.4
Patches
Vulnerability mechanics
References
2- www.wordfence.com/blog/2021/05/sql-injection-vulnerability-patched-in-cleantalk-antispam-plugin/nvdExploitThird Party Advisory
- wpscan.com/vulnerability/152171fc-888c-4275-a118-5a1e664ef28bnvdThird Party Advisory
News mentions
0No linked articles in our index yet.