CVE-2026-1841
Published: 13 February 2026
Summary
CVE-2026-1841 is a high-severity Cross-site Scripting (CWE-79) vulnerability in Wordpress (inferred from references). Its CVSS base score is 7.2 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 20.0th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-15 (Information Output Filtering).
Deeper analysis
CVE-2026-1841 is a stored cross-site scripting (XSS) vulnerability in the PixelYourSite – Your smart PIXEL (TAG) & API Manager plugin for WordPress, affecting all versions up to and including 11.2.0. The issue stems from insufficient input sanitization and output escaping of the 'pysTrafficSource' and 'pys_landing_page' parameters, allowing injected arbitrary web scripts to be stored in pages. It is classified under CWE-79 and carries a CVSS v3.1 base score of 7.2 (AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N). CVE-2026-27072 is likely a duplicate of this vulnerability.
Unauthenticated attackers can exploit this over the network with low attack complexity, requiring no privileges or user interaction due to the changed scope. By submitting malicious payloads via the vulnerable parameters, attackers inject scripts that persist in the pages and execute in the context of any user's browser when those pages are accessed, potentially leading to low-level impacts on confidentiality and integrity such as session hijacking or data theft.
References indicate mitigation through updates to the plugin, with fixes reflected in WordPress plugin trac repository details, including specific lines in includes/enrich/class_enrich_order.php (lines 252, 255, 265, 266) from tag 11.1.5.2 and changeset 3454364. Security practitioners should verify and apply patches from the official plugin repository.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-7366
Vulnerability details
The PixelYourSite – Your smart PIXEL (TAG) & API Manager 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, 11.2.0 due to insufficient input sanitization…
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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. CVE-2026-27072 is likely a duplicate of this issue.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Stored XSS in public-facing WordPress plugin directly enables unauthenticated remote exploitation (T1190) and arbitrary JavaScript execution in victim browsers (T1059.007).
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly requires validation and sanitization of untrusted input such as the pysTrafficSource and pys_landing_page parameters before they are stored or processed.
Requires filtering or encoding of information on output to prevent stored scripts from executing in user browsers when pages are rendered.
Provides mechanisms to detect and block malicious code (scripts) that result from the unsanitized parameters being persisted and later executed.