CVE-2026-1843
HIGHCVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Lifecycle Timeline
2Description
The Super Page Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Activity Log in all versions up to, and including, 5.2.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Analysis
Stored cross-site scripting in Super Page Cache for WordPress (versions up to 5.2.2) allows unauthenticated attackers to inject malicious scripts through the Activity Log due to inadequate input sanitization. The injected scripts execute in the browsers of any user viewing affected pages, enabling session hijacking, credential theft, or malware distribution. …
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Remediation
Within 24 hours: Audit all WordPress installations to identify if Super Page Cache plugin is installed and identify current version. Within 7 days: Disable the Activity Log feature in the plugin settings or uninstall the plugin entirely if not critical to operations; implement Web Application Firewall rules to block malicious input patterns targeting the Activity Log. …
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External POC / Exploit Code
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