CVE-2026-64795 in Articles Anywhere Pro Extension
Summary
by MITRE • 07/23/2026
Tag-provided custom HTML, module content/title overrides and decoded modal or tooltip values could execute unsafe markup. A content author could inject JavaScript that ran in visitors’ browsers.
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Analysis
by VulDB Data Team • 07/23/2026
This vulnerability represents a critical cross-site scripting flaw that allows malicious actors to inject arbitrary javascript code through seemingly benign content management features. The issue stems from inadequate input validation and sanitization mechanisms within the content authoring system, where custom html tags, module content overrides, and decoded modal or tooltip values all serve as potential attack vectors for executing unsafe markup. The vulnerability aligns with CWE-79 - Cross-site Scripting and follows the ATT&CK technique T1566.001 - Phishing via Social Media, as attackers can craft malicious payloads that execute in the context of legitimate user sessions.
The technical flaw manifests when content authors have the ability to provide custom html content or override module titles and descriptions without proper sanitization of user-provided input. When these elements are rendered in browsers, the injected javascript code executes with the privileges of the visiting user, potentially leading to session hijacking, data theft, or further exploitation of the compromised system. The vulnerability is particularly concerning because it leverages legitimate content management features that administrators typically trust and enable for normal operations.
Operational impact of this vulnerability extends beyond simple script execution, as successful exploitation can result in complete browser compromise of affected users. Attackers can leverage this flaw to steal cookies, session tokens, or sensitive information from authenticated users who visit compromised pages. The threat is amplified by the fact that content authors often have elevated privileges and may inject malicious code into commonly visited pages or modules that are displayed to multiple users simultaneously. This creates a scalable attack vector where a single compromised content author can affect numerous end users.
Mitigation strategies should focus on implementing robust input sanitization and output encoding mechanisms throughout the application stack, particularly at points where user-provided content is rendered. Content authors should be restricted from injecting raw html or javascript unless absolutely necessary, with all user input validated against strict whitelists of allowed tags and attributes. The system should employ context-aware encoding for different output contexts including html, javascript, and url contexts. Additionally implementing proper content security policies and regular security scanning of user-generated content can significantly reduce the attack surface. Security teams should also consider privilege separation and monitoring for unusual content author activities to detect potential exploitation attempts.