CVE-2026-73671 Saurus CMS Unauthenticated Open Redirect via logout url parameter
Attackers can redirect authenticated users to malicious sites via the logout URL parameter, enabling phishing and credential theft.
- 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-2026-73671?
CVE-2026-73671 is a medium-severity vulnerability in Saurus CMS Community Edition, published on 13 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
Saurus CMS Community Edition contains an unauthenticated open redirect vulnerability in the logout handling code in classes/port.inc.php, where the url parameter supplied via GET or POST is passed directly to the Location header without domain allowlist, scheme validation, or relative path enforcement. Attackers can craft a malicious logout URL containing an arbitrary external domain or javascript: URI scheme to redirect authenticated users to attacker-controlled phishing pages after session destruction, enabling credential theft and OAuth redirect abuse.
Weakness: CWE-601
Which versions are affected by CVE-2026-73671?
How do I fix CVE-2026-73671?
No fix has been published for CVE-2026-73671 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-73671 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-73671 exists.
Sources
Also known as GHSA-jjjg-67rc-qf87.