UpHeron
All vulnerabilities

WordPress plugins

CVE-2026-78438

W3 Total Cache: Cross-site Scripting

Severity
High 7.2
Published
21 Aug 2026
Added to UpHeron
18 Oct 2026
Fixed in
2.10.6
Also known as
WPV-5a139984fc7c
Sources
WPVulnerability

Affected software

SoftwareAffected versions
W3 Total Cache (WordPress plugin)WordPress plugins · wp-plugin:w3-total-cache
  • Every version before 2.10.6

References

  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-78438
  • Wordfence https://www.wordfence.com/threat-intel/vulnerabilities/wordpress-plugins/w3-total-cache/w3-total-cache-2105-unauthenticated-stored-cross-site-scripting-via-lazyload-background-mutator