What the vulnerability does
01Description
The Rapid Cache plugin for WordPress is vulnerable to Cache Poisoning in all versions up to, and including, 1.2.3. This is due to plugin storing HTTP headers in the cached data. This makes it possible for unauthenticated attackers to poison the cache with custom HTTP headers that may be unsanitized which can lead to Cross-Site Scripting.
Explanation of Vulnerability in Simple Terms
02Summary
Rapid Cache versions up to 1.2.3 contain a vulnerability that allows attackers to read sensitive information and modify data on affected sites. The flaw requires no authentication or user interaction and can impact systems beyond the vulnerable component itself. Site administrators should update to a version newer than 1.2.3 as soon as possible.
What an attacker can do
03Attacker Capabilities
Read sensitive data and modify site content without authentication.
Potential impact on your site
04Site Impact
Attackers can access private information and alter site data without logging in.
Conditions required to exploit
05Prerequisites
Network access only; no authentication or user interaction required.
Key dates
06Disclosure timeline
February 18, 2025
CVE published
April 8, 2026
Record updated