UpHeron
All vulnerabilities

WordPress plugins

CVE-2026-18978

LiteSpeed Cache: Cross-site Scripting

Severity
High 7.2
Published
27 Aug 2026
Added to UpHeron
21 Oct 2026
Fixed in
7.9
Also known as
WPV-43e2599b79de
Sources
WPVulnerability

Affected software

SoftwareAffected versions
LiteSpeed CacheWordPress plugins · wp-plugin:litespeed-cache
  • Every version before 7.9

References

  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-18978
  • Wordfence https://www.wordfence.com/threat-intel/vulnerabilities/wordpress-plugins/litespeed-cache/litespeed-cache-781-unauthenticated-stored-cross-site-scripting-via-comment-content