Overview
CVE-2025-65030 describes a high-severity authorization vulnerability affecting Rallly, an open-source scheduling and collaboration tool. Prior to version 4.5.4, this flaw allows any authenticated user to delete comments created by other users, including those belonging to poll owners and administrators. This unauthorized deletion is possible due to insufficient authorization checks in the comment deletion API.
Technical Details
The vulnerability lies in the Rallly comment deletion API endpoint. The endpoint responsible for deleting comments uses only the comment ID to identify the comment to be removed. Crucially, it does not validate whether the user making the request is the owner of the comment or possesses the necessary administrative privileges to delete it. This lack of validation means that any authenticated user, even without specific permissions, can craft a request with a valid comment ID and successfully delete it. The root cause is the missing authorization check before executing the deletion operation.
CVSS Analysis
This vulnerability has been assigned a CVSS score of 7.1 (HIGH). This score reflects the potential impact of the vulnerability. The ease of exploitation, requiring only an authenticated user account, contributes to the relatively high score. While the vulnerability doesn’t directly compromise system integrity in a broad sense, the ability to manipulate and remove content significantly affects data integrity and user trust.
Possible Impact
The potential impact of CVE-2025-65030 is significant:
- Data Integrity Compromise: Malicious users can delete legitimate comments, potentially disrupting discussions and manipulating poll results.
- Disruption of Collaboration: The deletion of important comments can hinder collaboration and decision-making processes within the Rallly platform.
- Reputational Damage: If exploited, this vulnerability can damage the reputation of organizations relying on Rallly for scheduling and collaboration.
- Denial of Service (Limited): While not a full denial of service, the ability to delete comments can effectively silence users or disrupt ongoing conversations.
Mitigation and Patch Steps
The vulnerability has been addressed in Rallly version 4.5.4. The recommended mitigation is to immediately upgrade to version 4.5.4 or later. This version includes the necessary authorization checks to prevent unauthorized comment deletion.
If upgrading immediately is not feasible, consider implementing temporary mitigations, although these are likely to be complex and potentially error-prone. Such mitigations might involve:
- Reviewing and potentially modifying the comment deletion API code to manually implement authorization checks. (This is strongly discouraged unless absolutely necessary due to complexity and risk of introducing further vulnerabilities).
