Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Litespeedtech | Litespeed Cache | <= 5.6 |
Related Weaknesses (CWE)
References
- https://github.com/litespeedtech/lscache_wp/commit/95a407d9f192b37ac6cf96d2aa50fPatch
- https://plugins.trac.wordpress.org/browser/litespeed-cache/tags/5.5.1/src/esi.clIssue Tracking
- https://plugins.trac.wordpress.org/changeset/2977143/litespeed-cache#file348Patch
- https://www.wordfence.com/threat-intel/vulnerabilities/id/27026f0f-c85e-4409-997Third Party Advisory
- https://github.com/litespeedtech/lscache_wp/commit/95a407d9f192b37ac6cf96d2aa50fPatch
- https://plugins.trac.wordpress.org/browser/litespeed-cache/tags/5.5.1/src/esi.clIssue Tracking
- https://plugins.trac.wordpress.org/changeset/2977143/litespeed-cache#file348Patch
- https://www.wordfence.com/threat-intel/vulnerabilities/id/27026f0f-c85e-4409-997Third Party Advisory
FAQ
What is CVE-2023-4372?
CVE-2023-4372 is a vulnerability with a CVSS score of 6.4 (MEDIUM). 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 es...
How severe is CVE-2023-4372?
CVE-2023-4372 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-4372?
Check the references section above for vendor advisories and patch information. Affected products include: Litespeedtech Litespeed Cache.