CVE-2025-65030 in rallly
Summary
by MITRE • 11/19/2025
Rallly is an open-source scheduling and collaboration tool. Prior to version 4.5.4, an authorization flaw in the comment deletion API allows any authenticated user to delete comments belonging to other users, including poll owners and administrators. The endpoint relies solely on the comment ID for deletion and does not validate whether the requesting user owns the comment or has permission to remove it. This issue has been patched in version 4.5.4.
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Analysis
by VulDB Data Team • 11/19/2025
The vulnerability identified as CVE-2025-65030 affects Rallly, an open-source scheduling and collaboration platform that enables users to coordinate meetings and share feedback through comment features. This authorization flaw represents a critical security weakness that undermines the platform's access control mechanisms and compromises user data integrity. The issue manifests within the comment deletion API endpoint, which fails to properly validate user permissions before executing deletion operations. Prior to version 4.5.4, any authenticated user could exploit this vulnerability to remove comments created by other users, including those belonging to poll owners and system administrators. The flaw stems from inadequate input validation and permission checking within the application's authorization logic, creating a path for unauthorized data manipulation. This vulnerability directly violates the principle of least privilege and demonstrates a failure in implementing proper access controls for sensitive operations.
The technical implementation of this vulnerability occurs at the API endpoint level where the comment deletion functionality relies exclusively on the comment identifier for authorization decisions. The system does not perform any verification to confirm that the requesting user has legitimate ownership rights or administrative privileges over the target comment. This design flaw creates a classic authorization bypass scenario where the application's security model is circumvented through simple parameter manipulation. The vulnerability is classified as a weakness in authorization controls and aligns with CWE-285, which addresses improper authorization issues in software systems. The lack of proper authentication checks before executing destructive operations represents a fundamental failure in the application's security architecture. Attackers can exploit this vulnerability by simply crafting API requests with valid comment IDs from other users, effectively enabling them to perform unauthorized deletions without requiring additional credentials or elevated privileges.
The operational impact of this vulnerability extends beyond simple data loss, as it compromises the integrity and trustworthiness of the collaborative platform. Users who create comments, particularly poll owners and administrators, face the risk of having their contributions removed without their consent or knowledge. This can severely disrupt collaborative workflows, damage user trust in the platform, and potentially expose sensitive information if comments contained confidential data. The vulnerability affects the entire user base since any authenticated individual can exploit it, making it particularly dangerous in environments where multiple users interact with shared polling and scheduling resources. Organizations relying on Rallly for coordination and planning activities may experience operational disruptions when unauthorized deletions occur, potentially leading to lost planning information and decreased productivity. The issue also creates potential for malicious actors to systematically remove comments that might contain important feedback or important scheduling information.
The mitigation for CVE-2025-65030 requires immediate implementation of proper authorization checks within the comment deletion API endpoint. The fix involves adding comprehensive user permission validation that verifies the requesting user's ownership of the target comment before allowing deletion operations. This approach aligns with the ATT&CK framework's mitigation strategies for privilege escalation and unauthorized access, specifically addressing techniques related to API abuse and insecure authorization. Organizations should ensure that the updated version 4.5.4 is deployed across all instances of the platform, and additional monitoring should be implemented to detect any suspicious deletion activities. Security teams should review the application's access control mechanisms more broadly to identify potential similar vulnerabilities in other API endpoints. The fix should include proper logging of deletion attempts, both successful and failed, to enable forensic analysis and audit trails. Additionally, implementing rate limiting and monitoring for deletion operations can help detect and prevent abuse of the API endpoint. The solution must also consider the principle of least privilege, ensuring that only authorized users can perform destructive operations on platform resources. This vulnerability highlights the importance of implementing defense-in-depth strategies and demonstrates how seemingly simple authorization checks can prevent significant security breaches in collaborative software environments.