CVE-2026-78333 12 Step Meeting List 3.17 - 3.19.16 - Unauthenticated Stored XSS via Geocode Event Log
Unauthenticated attackers can inject malicious scripts into the activity log, potentially compromising admin accounts via stored XSS.
- 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-2026-78333?
CVE-2026-78333 is a high-severity cross-site scripting vulnerability in Unknown 12 Step Meeting List, published on 27 Aug 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 12 Step Meeting List WordPress plugin before 3.19.17 does not sanitise and escape a value submitted by unauthenticated users before storing it in its activity log and outputting it back in an admin area page, leading to a Stored Cross-Site Scripting issue which could be used against high privilege users such as admin.
Weakness: CWE-79
Which versions are affected by CVE-2026-78333?
How do I fix CVE-2026-78333?
No fix has been published for CVE-2026-78333 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-2026-78333 being exploited?
There is no known exploitation of CVE-2026-78333 in the wild and no public exploit code.
Sources
Also known as GHSA-w97m-rc73-v4hm.