CVE-2026-19855
Spam protection, Honeypot, Anti-Spam by CleanTalk < 6.87 - Unauthenticated Arbitrary Shortcode Execution via Comment Text
- State
- Published
- Severity
- 6.5 Medium
- Published
- Sep 9, 2026
- Updated
- Sep 9, 2026
- Reserved
- Aug 14, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N | WPScan |
Weaknesses
- CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Affected Products
| Product | Versions |
|---|---|
CleanTalkUnknown |
|
References
- https://wpscan.com/vulnerability/c27f3657-261a-46cd-860c-0bdf5c849190/exploitvdb-entrytechnical-description
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