Slider, Gallery, and Carousel by MetaSlider <= 3.98.0 - Authenticated (Contributor+) Stored DOM-Based Cross-Site Scripting via aria-label Parameter
Vulnerability Description
The Slider, Gallery, and Carousel by MetaSlider plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘aria-label’ parameter in all versions up to, and including, 3.98.0 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Asaf Mozes
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/0e6492e5-a506-4d77-96d2-08f700b6ee76?source=cve
- https://plugins.trac.wordpress.org/browser/ml-slider/tags/3.98.0/assets/metaslider/script.js#L11
- https://wordpress.org/plugins/ml-slider/#developers
- https://plugins.trac.wordpress.org/changeset/3309932/ml-slider/tags/3.99.0/assets/metaslider/script.js
Affected Vendor
metaslider
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