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CVE-2021-24436CWE-79

W3 Total Cache < 2.1.4 - Reflected XSS in Extensions Page (Attribute Context)

18Vexday Risk Score

Patch soon. It has a working public exploit.

ssvc Attendepss 1.9%
exploitation probability
1.9%top 22% of all CVEs
observed exploitation
nono source reports it
The W3 Total Cache WordPress plugin before 2.1.4 was vulnerable to a reflected Cross-Site Scripting (XSS) security vulnerability within the "extension" parameter in the Extensions dashboard, which is output in an attribute without being escaped first. This could allow an attacker, who can convince an authenticated admin into clicking a link, to run malicious JavaScript within the user's web browser, which could lead to full site compromise.