CVE-2026-113500
LiteSpeed Cache < 7.9.2 - Unauthenticated Stored XSS via Font Display Optimization
- State
- Published
- Severity
- 7.5 High
- Published
- Oct 23, 2026
- Updated
- Oct 23, 2026
- Reserved
- Oct 20, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H | CISA-ADP |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
LiteSpeed CacheUnknown |
|
References
- https://wpscan.com/vulnerability/f841e09f-275c-4c10-a5b7-af294f92db29/exploitvdb-entrytechnical-description
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