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CVEs-PoC/2021/CVE-2021-39357.md
2025-09-29 21:09:30 +02:00

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CVE-2021-39357

Description

The Leaky Paywall WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and sanitization via the ~/class.php file which allowed attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 4.16.5. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled.

POC

Reference

No PoCs from references.

Github