LiteSpeed Cache < 7.9.2 - Unauthenticated Stored XSS via CDN Inline CSS Rewriting
CVSS score
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EPSS probability
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Risk score
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Published
4 h ago
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Impact on My Inventory
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Vulnerability description
DayBreach AI Explanation
Verified against sourcesSources read
2
Source agreement
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Evidence confidence
%63
Short explanation
LiteSpeed Cache plugin versions prior to 7.9.2 allow unauthenticated users to execute JavaScript because the CDN inline CSS rewriting routine is not restricted to stylesheet content.
This vulnerability enables unauthenticated attackers to execute JavaScript in the browsers of visitors and logged-in administrators through published comments, creating a compromise risk.
What should be done?
- Follow vendor security advisories
- Review related plugin settings
Chain of evidence and sources
LiteSpeed Cache eklentisi 7.9.2 öncesi sürümlerde CDN satır içi CSS yeniden yazma rutini stil sayfası içeriğiyle kısıtlanmamıştır.
Kimlik doğrulanmamış kullanıcılar, yayınlanan yorumlar aracılığıyla ziyaretçilerin tarayıcılarında JavaScript çalıştıracak öznitelikler enjekte edebilir.
Show the technical text from the sources
The LiteSpeed Cache WordPress plugin before 7.9.2 does not restrict one of its HTML rewriting routines to stylesheet content, so it removes a quote that terminates an attribute in the rendered page, and combined with unescaped comment author output this allows unauthenticated users whose comment is published to inject attributes that execute JavaScript in the browser of any visitor, including a logged-in administrator, who views front-end pages while the affected option is enabled.
This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2026-113499 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | Unknown | LiteSpeed Cache | View |
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| The sources have not yet published a verified CVSS metric. | ||||
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-113499 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-113499 weaknesses.
Official Sources and Advisories
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