# CVE-2026-113499: LiteSpeed Cache WordPress plugin stored XSS in comment rewriting

Source: https://junglewise.ai/threats/cve-2026-113499-the-litespeed-cache-wordpress-plugin-before-7-9-2-does-not  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-23. Updated: 2026-10-23  
License: CC BY 4.0 with a link back

CVE-2026-113499 · Severity: info · Published 2026-10-23

LiteSpeed Cache is a WordPress plugin that optimizes site performance through caching and content delivery. An unauthenticated attacker can publish a comment containing malicious code that, when rendered by the plugin's HTML rewriting feature, executes arbitrary JavaScript in the browsers of all visitors including administrators. This allows attackers to steal session tokens, modify page content, or perform actions as a logged-in admin.

Technologies: [LiteSpeed Cache](https://junglewise.ai/threats/technologies/litespeed-cache-1). Vendors: [LiteSpeed](https://junglewise.ai/threats/vendors/litespeed).

## 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

## References

- [https://wpscan.com/vulnerability/f04afdab-33fb-41a9-9270-908673998bb8/](https://wpscan.com/vulnerability/f04afdab-33fb-41a9-9270-908673998bb8/)

## Related threats

- [LiteSpeed Cache WordPress plugin authorization bypass in admin notice dismissal](https://junglewise.ai/threats/cve-2026-113501-the-litespeed-cache-wordpress-plugin-before-7-9-2-does-not)
- [LiteSpeed Cache reflected XSS via esi parameter](https://junglewise.ai/threats/cve-2026-76579-the-litespeed-cache-plugin-for-wordpress-is-vulnerable-to)