CVE-2026-73381 WordPress Popup by Supsystic plugin <= 1.13.0 - Broken Authentication vulnerability
Unauthenticated attackers can bypass authentication in the Popup by Supsystic WordPress plugin, potentially gaining unauthorized access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-73381?
CVE-2026-73381 is a critical authentication bypass vulnerability in Popup by Supsystic, published on 18 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Unauthenticated Broken Authentication in Popup by Supsystic <= 1.13.0 versions.
Weakness: CWE-288
Which versions are affected by CVE-2026-73381?
How do I fix CVE-2026-73381?
No fix has been published for CVE-2026-73381 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-73381 being exploited?
There is no known exploitation of CVE-2026-73381 in the wild and no public exploit code.
Sources
Also known as GHSA-29w8-vv8g-hpgw.