Medium 6.5Published Nov 19, 2025

CVE-2025-65031Rallly Improper Authorization in Comment Endpoint Allows User Impersonation

Updated under an hour ago (Oct 26, 2026, 2:30 PM ET)

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It affects lukevella rallly and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for lukevella rallly

Exploited in the last 30 days

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: 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Weakness (CWE): CWE-285, CWE-639
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Nov 19, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

lukevella rallly lukevella:rallly (from the name)	before 4.5.4	CNA record
rallly rallly rallly:rallly	before 4.5.4	NVD

References

References

https://github.com/lukevella/rallly/security/advisories/GHSA-hhfc-6gq7-rrpm	x-refsource-confirm, exploit, third-party-advisory
https://github.com/lukevella/rallly/releases/tag/v4.5.4	x-refsource-misc, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.