CVE-2026-74916 WP Fastest Cache 0.8.7.7 - 1.5.0 - Unauthenticated Cache Poisoning via Unkeyed Tracking Parameters
Unauthenticated attackers can poison the page cache by manipulating tracking parameters, causing malicious content to be served to all subsequent visitors.
- 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-2026-74916?
CVE-2026-74916 is a medium-severity vulnerability in Unknown WP Fastest Cache, published on 1 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The WP Fastest Cache WordPress plugin before 1.5.1 does not include a set of tracking-related query parameters in its page-cache key while still caching pages requested with them, allowing unauthenticated attackers to have a page rendered under their own request context stored under, and served from, the clean URL's cache entry to every subsequent visitor.
Weakness: CWE-349
Which versions are affected by CVE-2026-74916?
How do I fix CVE-2026-74916?
No fix has been published for CVE-2026-74916 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-74916 being exploited?
There is no known exploitation of CVE-2026-74916 in the wild and no public exploit code.
Sources
Also known as GHSA-jvr3-g2r2-974v.