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.
Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2023-54236 | 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. |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Wed, 08 Apr 2026 17:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | LiteSpeed Cache <= 5.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode |
Projects
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Status: PUBLISHED
Assigner: Wordfence
Published:
Updated: 2026-04-08T16:42:51.050Z
Reserved: 2023-08-15T12:43:57.111Z
Link: CVE-2023-4372
No data.
Status : Modified
Published: 2024-01-11T09:15:46.773
Modified: 2026-04-08T17:17:02.270
Link: CVE-2023-4372
No data.
OpenCVE Enrichment
No data.
Weaknesses
EUVD