CVE-2026-8071: Unknown Anti-Spam By Cleantalk. Spam Protection

High severity, CVSS 8.8. EPSS: 0.5% chance of exploitation in the next 30 days.

The Anti-Spam by CleanTalk. Spam protection WordPress plugin before 6.79 does not properly sanitize content within a custom shortcode used in its email-encoding feature, allowing unauthenticated attackers to inject arbitrary web scripts into approved comments that will execute when any user (including administrators) views the post.

Affected products

• Unknown Anti-Spam By Cleantalk. Spam Protection: before 6.79 (fixed in 6.79)

Published 2026-06-10. Last modified 2026-07-23.