Overview
CVE-2025-65031 is a medium severity vulnerability affecting Rallly, an open-source scheduling and collaboration tool. This improper authorization flaw allows authenticated users to post comments under the guise of other users, including administrators. This could lead to misinformation, phishing attacks, and social engineering within your Rallly instance. This vulnerability has been addressed in Rallly version 4.5.4. We strongly recommend upgrading to this version immediately.
Technical Details
The vulnerability resides in the comment creation endpoint of the Rallly API. Specifically, the authorName field in the API request is not properly validated. An authenticated user can modify this field to impersonate any other user when creating a comment. No special privileges are required to exploit this vulnerability, only a valid user account on the Rallly instance.
CVSS Analysis
- CVE ID: CVE-2025-65031
- Severity: MEDIUM
- CVSS Score: 6.5
This CVSS score reflects the potential for impact and exploitability. While the attack requires an authenticated user, the ability to impersonate other users, especially administrators, significantly raises the risk level.
Possible Impact
Successful exploitation of CVE-2025-65031 can have several detrimental impacts:
- Misinformation and Disruption: Attackers can spread false information under the guise of trusted users, disrupting discussions and potentially misdirecting scheduling decisions.
- Phishing Attacks: Malicious links or requests could be embedded in comments posted as administrators, leading users to compromised websites or exposing sensitive information.
- Social Engineering: The attacker can build trust under a false identity, enabling them to manipulate users into revealing credentials or performing actions they would not otherwise undertake.
- Reputation Damage: Compromised Rallly instances can lose the trust of their users, especially if the comment spoofing results in embarrassing or damaging content being posted.
Mitigation and Patch Steps
The primary mitigation for CVE-2025-65031 is to upgrade your Rallly instance to version 4.5.4 or later. Here’s how to do it:
- Backup your Rallly data: Before upgrading, create a full backup of your database and any other important Rallly data. This will allow you to restore your instance if any issues arise during the upgrade process.
- Follow the official upgrade instructions: Refer to the Rallly documentation for detailed instructions on upgrading your specific installation. This can usually be found on the official Rallly website or GitHub repository.
- Verify the upgrade: After the upgrade is complete, verify that the vulnerability has been patched. This can be done by attempting to exploit the vulnerability manually or by using a security scanner.
