Quick answers
- Is CVE-2026-113499 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-113499 being exploited in the wild.
- How severe is CVE-2026-113499?
- Informational severity, published 23 October 2026.
- Which products and versions are affected?
- LiteSpeed Cache before 7.9.2.
- Is there a fix for CVE-2026-113499?
- Yes: fixed in 7.9.2. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-113499 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-113499?
- Check whether you run LiteSpeed Cache at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: 7.9.2
Technical details
A stored cross-site scripting (XSS) vulnerability exists in LiteSpeed Cache's HTML rewriting routine used for CDN inline CSS optimization. The plugin fails to restrict its quote-stripping logic to stylesheet content and does not properly escape comment author output, allowing an unauthenticated attacker to inject malicious HTML attributes into published comments. The vulnerability requires the affected HTML rewriting option to be enabled and the attacker's comment to be published.
Affected products
- LiteSpeed Cache before 7.9.2
Timeline
- 2026-10-21: disclosed
- 2026-10-23: advisory