CVE-2025-65031
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-11-19

Last updated on: 2025-11-25

Assigner: GitHub, Inc.

Description
Rallly is an open-source scheduling and collaboration tool. Prior to version 4.5.4, an improper authorization flaw in the comment creation endpoint allows authenticated users to impersonate any other user by altering the authorName field in the API request. This enables attackers to post comments under arbitrary usernames, including privileged ones such as administrators, potentially misleading other users and enabling phishing or social engineering attacks. This issue has been patched in version 4.5.4.
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Meta Information
Published
2025-11-19
Last Modified
2025-11-25
Generated
2026-06-16
AI Q&A
2025-11-19
EPSS Evaluated
2026-06-15
NVD
CVE-2025-65031
EUVD
EUVD-2025-198236
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
rallly rallly to 4.5.4 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-285 The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.
CWE-639 The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.
Attack-Flow Graph
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Executive Summary

This vulnerability in Rallly versions prior to 4.5.4 is an improper authorization flaw in the comment creation endpoint. Authenticated users can manipulate the authorName field in the API request to impersonate any other user, including privileged users like administrators. This allows attackers to post comments under arbitrary usernames, potentially misleading other users.

Impact Analysis

The vulnerability can impact you by allowing attackers to impersonate other users, including administrators, through posted comments. This can mislead users, facilitate phishing or social engineering attacks, and undermine trust in the platform's communication.

Mitigation Strategies

Upgrade Rallly to version 4.5.4 or later, where the improper authorization flaw in the comment creation endpoint has been patched. Until the upgrade is applied, restrict authenticated user access to the comment creation API and monitor for suspicious comment activity that may indicate impersonation attempts.

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