CVE-2022-25576 in Anchor
Summary
by MITRE • 03/25/2022
Anchor CMS v0.12.7 was discovered to contain a Cross-Site Request Forgery (CSRF) via the component anchor/routes/posts.php. This vulnerability allows attackers to arbitrarily delete posts.
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Analysis
by VulDB Data Team • 03/27/2022
The vulnerability identified as CVE-2022-25576 represents a critical Cross-Site Request Forgery flaw within Anchor CMS version 0.12.7 that specifically targets the anchor/routes/posts.php component. This vulnerability falls under the CWE-352 category, which defines Cross-Site Request Forgery as a security weakness that enables attackers to trick authenticated users into executing unwanted actions on web applications. The flaw exists in the application's handling of POST requests within the posts routing system, where proper CSRF protection mechanisms are either absent or insufficiently implemented.
The technical exploitation of this vulnerability occurs when an attacker crafts a malicious request that, when executed by an authenticated user, triggers unauthorized deletion operations within the CMS. The vulnerability stems from the lack of anti-CSRF tokens or similar validation mechanisms in the posts.php component, allowing attackers to construct forged requests that appear legitimate to the application. This occurs because the CMS fails to verify that requests originate from authenticated users within the application context rather than from external malicious sources. The vulnerability is particularly dangerous as it operates at the application layer, bypassing traditional network-level security controls that might otherwise detect or block malicious traffic patterns.
The operational impact of this vulnerability extends beyond simple data loss, as it fundamentally compromises the integrity and availability of content management operations within the CMS. Attackers can leverage this weakness to delete arbitrary posts, potentially causing significant damage to website content, disrupting content management workflows, and undermining user trust in the platform's security. The vulnerability affects any authenticated user session that interacts with the posts management functionality, making it particularly concerning for content editors and administrators who regularly access the CMS. Organizations using this version of Anchor CMS face the risk of content tampering, reputational damage, and potential compliance violations if sensitive content is deleted or modified without authorization.
Mitigation strategies for CVE-2022-25576 should prioritize immediate remediation through the application of the vendor's official security patch or upgrade to a version that addresses the CSRF vulnerability. System administrators should implement proper CSRF token validation mechanisms across all POST request handlers within the CMS, ensuring that each request contains valid authentication tokens that correlate with the user's session. The implementation should follow established security frameworks such as the OWASP CSRF Prevention Cheat Sheet, which recommends the use of unique, unpredictable tokens for each user session. Additionally, organizations should consider implementing additional security controls including request origin validation, rate limiting on content modification operations, and comprehensive monitoring of deletion activities. Network-level defenses such as web application firewalls can provide additional protection by detecting and blocking suspicious request patterns, though these should complement rather than replace proper application-level CSRF protection. The vulnerability also highlights the importance of regular security assessments and penetration testing to identify similar weaknesses in other components of the CMS or related applications.