CVE-2021-24295

Time-based Blind SQL Injection in Spam protection, AntiSpam, FireWall by CleanTalk < 5.153.4

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.

Affected

СleanTalk · Spam protection, AntiSpam, FireWall by CleanTalk

CVSS v3.1 NVD

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v2.0 NVD

5.0 MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N

EPSS

4.69% chance of exploitation in the next 30 days, 92nd percentile

Nuclei

high · CWE-89

Published

2021-05-17

Updated

2024-08-03

Proof-of-concept exploits (1)

• https://www.wordfence.com/blog/2021/05/sql-injection-vulnerability-patched-in-cleantalk-a…

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-24295.yaml

Security advisories

• https://wpscan.com/vulnerability/152171fc-888c-4275-a118-5a1e664ef28b
• https://www.wordfence.com/blog/2021/05/sql-injection-vulnerability-patched-in-cleantalk-a…

References

• CVE Record
• NVD entry