CVE-2026-19855
Spam protection, Honeypot, Anti-Spam by CleanTalk < 6.87 - Unauthenticated Arbitrary Shortcode Execution via Comment Text
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
The CleanTalk WordPress plugin before 6.87 does not prevent unauthenticated, user-supplied comment content from being passed to WordPress's shortcode engine, allowing any visitor to have arbitrary shortcodes registered on the site executed server-side and rendered to every subsequent visitor of the page.
| Vendor | unknown |
| Product | cleantalk |
| Published | Sep 9, 2026 |
| Last Updated | Sep 9, 2026 |
Stay Ahead of the Next One
Get instant alerts for unknown cleantalk
Be the first to know when new medium vulnerabilities affecting unknown cleantalk are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Unknown / CleanTalk
0 < 6.87
References
Credits
Jakub Herman WPScan