CVE-2023-51696: cleantalk anti-spam Cross-Site Request Forgery (CSRF)
CVSS: 8.8v3.1HighModified
Published 29-02-2024Last modified 28-04-2026
Vulnerability summary
CVE-2023-51696 is a high (CVSS 8.8) Cross-Site Request Forgery (CSRF) vulnerability in cleantalk anti-spam. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.3% of scored vulnerabilities. Fixed in 6.21.
CVSS score
8.8/10
010
High · v3.1 (NVD)EPSS score
0.24%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 29-02-2024PublishedVulnerability first disclosed.
- 28-04-2026Last modifiedVulnerability information updated.
Description
Cross-Site Request Forgery (CSRF) vulnerability in СleanTalk - Anti-Spam Protection Spam protection, Anti-Spam, FireWall by CleanTalk.This issue affects Spam protection, Anti-Spam, FireWall by CleanTalk: from n/a through 6.20.
CVSS metrics
3 scores · 3 sources · 1 versionHigh 8.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSources3 sources · 4.3–8.8
- CVE.orgCNA4.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:NDiffers
- wordfenceSource4.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:NDiffers
EPSS trend
Probability
0.24%
Chance of exploitation in the next 30 days
Percentile
14%
Versus all other CVEs
30-day change
0.00 pp
From 0.24% on 21-09-2026
21-09-202621-10-2026
EPSS score0.24%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Cleantalk1 product
- anti-spam< 6.21
Wordpress1 product
- cleantalk-spam-protect≤ 6.20 (fixed in 6.21)
Сleantalk - anti-spam protection1 product
- spam protection, anti-spam, firewall by cleantalk≥ n/a, ≤ 6.20
3 vendors · 3 products