What’s Vulnerable › Vulnerabilities
CVE-2026-74916: WP Fastest Cache 0.8.7.7 - 1.5.0 - Unauthenticated Cache Poisoning via Unkeyed Tracking Parameters
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-01 · updated 2026-09-01
- Weakness: CWE-349
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.
Affected products
- emrevona WP Fastest Cache – WordPress Cache Plugin: from 0.8.7.7 before 1.5.1 — fixed in 1.5.1
How to fix
Upgrade to a fixed version: emrevona WP Fastest Cache – WordPress Cache Plugin 1.5.1. Check the vendor advisory for mitigations.
References
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