CVE-2026-16296 Clearfy < 2.4.3 - Open Redirect via Cyrlitera 404 Handler
Unauthenticated attackers can redirect visitors to arbitrary external URLs via the Cyrlitera 404 handler in the Clearfy Cache WordPress plugin when a specific option is enabled.
- 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-2026-16296?
CVE-2026-16296 is a medium-severity vulnerability in Unknown Clearfy Cache, published on 4 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 Clearfy Cache WordPress plugin before 2.4.3 does not validate the redirect target in its Cyrlitera old-URL redirect handler, passing a decoded request URI to an unsafe redirect function, which allows unauthenticated attackers to redirect visitors to an arbitrary external URL when a non-default option is enabled.
Weakness: CWE-601
Which versions are affected by CVE-2026-16296?
How do I fix CVE-2026-16296?
No fix has been published for CVE-2026-16296 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-16296 being exploited?
There is no known exploitation of CVE-2026-16296 in the wild and no public exploit code.
Sources
Also known as GHSA-qc2w-xhvw-6xmh.