CVE-2026-8071 Spam protection, Honeypot, Anti-Spam by CleanTalk < 6.79 - Unauthenticated Stored XSS via Comment Shortcode Bypass
Unauthenticated attackers can inject arbitrary scripts into comments via a shortcode bypass, leading to script execution when viewed by users or administrators.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-8071?
CVE-2026-8071 is a high-severity cross-site scripting vulnerability in Unknown Anti-Spam by CleanTalk. Spam protection, published on 10 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-79
Which versions are affected by CVE-2026-8071?
How do I fix CVE-2026-8071?
No fix has been published for CVE-2026-8071 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-8071 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-8071 exists.
Sources
Also known as GHSA-jqmp-cmj4-fv28.