CVE-2026-107637 in pH7Builder
Summary
by MITRE • 10/08/2026
pH7Builder (pH7 Social Dating CMS) before 18.5.0 contains an improper authorization vulnerability in the note module delete() action that allows authenticated members to delete other members' note comments and categories. Attackers can submit another member's note ID in the POST id parameter to remove all comments and category associations, since those queries lack profile ID checks.
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Analysis
by VulDB Data Team • 10/08/2026
The identified vulnerability resides within pH7Builder, a social dating content management system, specifically affecting versions prior to 18.5.0. This security flaw is classified as an improper authorization issue, technically corresponding to CWE-269: Improper Privilege Management. The core of the problem lies in the note module's delete action, which fails to enforce adequate access controls when processing deletion requests for user-generated content such as notes and their associated comments or categories. In a properly secured application, any operation that modifies data belonging to one user must verify that the requesting authenticated user is indeed the owner of that data or possesses explicit administrative privileges to do so.
The technical mechanism of this vulnerability exploits the lack of profile ID validation in the backend logic handling note deletions. When an authenticated member initiates a request to delete a note, the application accepts a POST parameter containing the target note's identifier. Crucially, the system does not cross-reference this identifier with the session data or user context associated with the active login token. Consequently, if an attacker obtains the unique identifier of another member's note through legitimate means such as viewing public profiles or browsing activity feeds, they can construct a malicious HTTP POST request targeting that specific ID. The server processes this request without verifying ownership, leading to the unauthorized removal of the target user's content.
The operational impact of this vulnerability is significant for data integrity and availability within the social platform context. Attackers with valid credentials on the system can delete other members' note comments and remove category associations at will. This capability allows for targeted harassment or disruption by erasing a victim's digital footprint, including their expressed opinions, categorizations, and interactions recorded in notes. Since the vulnerability affects authenticated users rather than anonymous visitors, it represents an insider threat scenario where any registered member can compromise another member's data integrity without needing to escalate privileges beyond basic account access. This undermines trust among community members and violates the principle of least privilege by allowing standard user accounts to perform administrative-level actions on resources they do not own.
From a defensive posture perspective, this vulnerability aligns with MITRE ATT&CK technique T1078: Valid Accounts, as it leverages legitimate credentials to perform unauthorized actions. Mitigation strategies must focus on implementing robust server-side validation checks. Developers should ensure that every data modification endpoint verifies the relationship between the authenticated user's session identifier and the resource being modified. Specifically, SQL queries or ORM operations involved in deleting notes must include a WHERE clause that restricts deletion to records where the owner_id matches the current user's ID. Additionally, implementing CSRF protection mechanisms is essential to prevent cross-site request forgery attacks that could automate this exploitation process. Upgrading pH7Builder to version 18.5.0 or later resolves these issues by patching the authorization logic in the note module. Until an upgrade is feasible, administrators should consider restricting access to sensitive modules if possible and monitoring for unusual patterns of content deletion activity among user accounts.