The LiteSpeed Cache WordPress plugin before 7.9.2 does not limit one of its HTML optimization routines to stylesheet content, so it can delete the markup that closes an attribute in the rendered page, and combined with unescaped comment author output this allows unauthenticated users whose comments are published to inject event-handler attributes that run JavaScript in the browser of any visitor, including a logged-in administrator, viewing front-end pages while the optimization is enabled.

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Fixes

Solution

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Workaround

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History

Fri, 23 Oct 2026 08:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-79

Fri, 23 Oct 2026 06:15:00 +0000

Type Values Removed Values Added
Description The LiteSpeed Cache WordPress plugin before 7.9.2 does not limit one of its HTML optimization routines to stylesheet content, so it can delete the markup that closes an attribute in the rendered page, and combined with unescaped comment author output this allows unauthenticated users whose comments are published to inject event-handler attributes that run JavaScript in the browser of any visitor, including a logged-in administrator, viewing front-end pages while the optimization is enabled.
Title LiteSpeed Cache < 7.9.2 - Unauthenticated Stored XSS via Font Display Optimization
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published:

Updated: 2026-10-23T06:00:20.249Z

Reserved: 2026-10-20T09:59:40.337Z

Link: CVE-2026-113500

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-23T06:17:06.587

Modified: 2026-10-23T06:17:06.587

Link: CVE-2026-113500

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-23T07:45:17Z

Weaknesses