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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Cleantalk Spam Protect Plugin | — | Update cleantalk-spam-protect plugin to version 5.153.4, or a newer patched version | May 15, 2025 | Mar 5, 2021 |
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