CVE-2025-65031

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.

CVSS 3.1

6.5CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

EPSS

0.3% chance of exploitation in the next 30 days; higher than 19% of CVEs (scores of 2026-10-25)

CWEs

CWE-285, CWE-639

Published

2025-11-19

Modified

2026-10-18

Record from

the NVD, synced 2026-10-19

Affected

• rallly:rallly

References

• https://github.com/lukevella/rallly/releases/tag/v4.5.4
• https://github.com/lukevella/rallly/security/advisories/GHSA-hhfc-6gq7-rrpm

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