Medium severity6.4NVD Advisory· Published Jan 11, 2024· Updated Apr 8, 2026
CVE-2023-4372
CVE-2023-4372
Description
The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'esi' shortcode in versions up to, and including, 5.6 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- cpe:2.3:a:litespeedtech:litespeed_cache:*:*:*:*:*:wordpress:*:*Range: <=5.6
- Range: <=5.6
Patches
Vulnerability mechanics
References
4- github.com/litespeedtech/lscache_wp/commit/95a407d9f192b37ac6cf96d2aa50f240e3e6b2d7nvdPatch
- plugins.trac.wordpress.org/changeset/2977143/litespeed-cachenvdPatch
- www.wordfence.com/threat-intel/vulnerabilities/id/27026f0f-c85e-4409-9973-4b9cb8a90da5nvdThird Party Advisory
- plugins.trac.wordpress.org/browser/litespeed-cache/tags/5.5.1/src/esi.cls.phpnvdIssue Tracking
News mentions
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