CVE-2025-5336mediumCWE-79

CVE-2025-5336: medium-severity vulnerability in holithemes Click to Chat – HoliThemes

Click to Chat <= 4.22 - Authenticated (Contributor+) Stored DOM-Based Cross-Site Scripting via data-no_number Parameter

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.4epss 0.3%
The Click to Chat plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘data-no_number’ parameter in all versions up to, and including, 4.22 to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Affected products
holithemes · Click to Chat – HoliThemes
Related CVEs — holithemes Click to Chat – HoliThemes

In the same product, most dangerous first.

CVE-2024-3849HIGHClick to Chat – HoliThemes <= 3.35 - Authenticated (Contributor+) Local File InclusionEPSS 1.7%CVE-2026-92097CRITICALClick to Chat <= 4.44 - Unauthenticated Arbitrary Shortcode Execution via REQUEST_URI via {url} PlaceholderEPSS 0.5%CVE-2026-7795MEDIUMClick to Chat <= 4.39 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'num' Shortcode ParameterEPSS 0.4%