Caching Vulnerability in WP Fastest Cache Plugin Affects WordPress Pages
CVE-2026-74916

6.5MEDIUM

Key Information:

Vendor

WordPress
Status
WP Fastest Cache
Vendor
CVE Published:
1 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-74916?

The WP Fastest Cache plugin for WordPress exhibits a vulnerability that permits unauthenticated attackers to exploit the caching mechanism. Specifically, the plugin fails to incorporate a set of query parameters related to tracking within its cache key. As a result, pages cached under these conditions may inadvertently display content tailored to the attacker's request context. This means that subsequent visitors could see responses rendered from the attacker's cached request, creating a significant security risk for WordPress websites utilizing this plugin.

Affected Version(s)

WP Fastest Cache 0.8.7.7 < 1.5.1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-74916 - Proof of Concept

References

https://wpscan.com/vulnerability/b6f8be96-13d9-497a-8e57-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Amity Gilmour
WPScan
.