CVE-2026-1844
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 PixelYourSite PRO plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'pysTrafficSource' parameter and the 'pys_landing_page' parameter in all versions up to, and including, 12.4.0.2 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 XSS in WordPress PixelYourSite PRO plugin versions up to 12.4.0.2 allows unauthenticated attackers to inject malicious scripts through the 'pysTrafficSource' and 'pys_landing_page' parameters due to insufficient input validation and output encoding. When site visitors access pages containing injected payloads, the malicious scripts execute in their browsers, potentially enabling session hijacking, credential theft, or malware distribution. …
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Remediation
Within 24 hours: Inventory all WordPress installations using PixelYourSite PRO and document current versions. Within 7 days: Implement WAF rules to block malicious payloads in 'pysTrafficSource' and 'pys_landing_page' parameters; consider disabling the plugin if non-critical. …
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External POC / Exploit Code
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