CVE-2026-4334mediumCWE-79

CVE-2026-4334: medium-severity vulnerability in 3uu Shariff Wrapper

Shariff Wrapper <= 4.6.20 - Authenticated (Contributor+) Cross-Site Scripting

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13Vexday Risk Score

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

ssvc Trackcvss 6.4epss 0.2%
The Shariff Wrapper plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'headline' parameter in the [shariff] shortcode in all versions up to, and including, 4.6.20 due 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. The vulnerability occurs because the plugin uses a custom wp_kses implementation with permissive allowed HTML tags, and then performs a str_replace operation that injects HTML after sanitization, allowing event handlers to be introduced through the %total placeholder in the style attribute.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Affected products
3uu · Shariff Wrapper
Related CVEs — 3uu Shariff Wrapper

In the same product, most dangerous first.

CVE-2024-4098CRITICALShariff Wrapper <= 4.6.13 - Unauthenticated Local File InclusionEPSS 1.0%CVE-2024-0966MEDIUMShariff Wrapper <= 4.6.9 - Authenticated (Contributor+) Stored Cross-Site ScriptingEPSS 0.5%CVE-2024-1450MEDIUMShariff Wrapper <= 4.6.10 - Authenticated (Contributor+) Stored Cross-Site ScriptingEPSS 0.5%CVE-2023-6500MEDIUMShariff Wrapper <= 4.6.9 - Authenticated(Contributor+) Stored Cross-Site Scripting via ShortcodeEPSS 0.4%CVE-2024-2695MEDIUMShariff Wrapper <= 4.6.13 - Authenticated (Contributor+) Stored Cross-Site Scripting via ShortcodeEPSS 0.3%