Cross-Site Scripting Vulnerability in CoolClock WordPress Plugin
CVE-2026-83545
Currently unrated
Key Information:
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👾 Exploit Exists🟡 Public PoC
What is CVE-2026-83545?
The CoolClock WordPress plugin prior to version 4.3.8 contains a vulnerability that allows users with contributor-level access and above to inject malicious JavaScript code. This occurs due to improper escaping of a custom skin setting before its output in an inline script. If exploited, this vulnerability enables attackers to execute arbitrary scripts when the content is viewed, potentially compromising the site's security.
Affected Version(s)
CoolClock 0 < 4.3.8
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.