LiteSpeed Cache < 7.9.2 - Unauthenticated Stored XSS via Font Display Optimization
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.
CVE-2026-113500
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-113500
LiteSpeed Cache
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Unknown",
"product": "LiteSpeed Cache",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "7.9.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-113500
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #52647 · Revision 1
- Added to Heist Feed
- Publisher date