6.5
Medium
CVE-2026-19855 The CleanTalk WordPress plugin before 6.87 does not prevent unauthenticated, user-supplied comment content from being…
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| CleanTalk 6.87 | earliest → < 6.87 | 6.87 |