Auth bypass in Lukevella Rallly
CVE-2025-65028
Rallly is an open-source scheduling and collaboration tool. Prior to version 4.5.4, an insecure direct object reference (IDOR) vulnerability allows any authenticated user to modify other participants’ votes in polls without authorization. The backend relies solely on the participantId parameter to identify which votes to update, without verifying ownership or poll permissions. This allows an attacker to alter poll results in their favor, directly compromising data integrity. This issue has been patched in version 4.5.4.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.003 (15.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 15.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Lukevella Rallly — versions < 4.5.4
- Rallly
Weakness classification (CWE)
References
- github.com/lukevella/rallly/security/advisories/GHSA-pchc-v5hg-f5gp (Exploit, Vendor Advisory)
- github.com/lukevella/rallly/releases/tag/v4.5.4 (Release Notes)
Frequently asked questions
- What is CVE-2025-65028?
- CVE-2025-65028 is a medium-severity vulnerability in Lukevella Rallly, classified under Improper Authorization. CVSS score: 6.5/10. Published 2025-11-19.
- How severe is CVE-2025-65028?
- Medium severity. CVSS v3 base score is 6.5 out of 10.