What is CVE-2025-65021?

CVE-2025-65021 is a critical-severity vulnerability in Lukevella Rallly, classified under Improper Authorization. CVSS score: 9.1/10. Published 2025-11-19.

How severe is CVE-2025-65021?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Auth bypass in Lukevella Rallly

CVE-2025-65021

Rallly is an open-source scheduling and collaboration tool. Prior to version 4.5.4, an Insecure Direct Object Reference (IDOR) vulnerability exists in the poll finalization feature of the application. Any authenticated user can finalize a poll they do not own by manipulating the pollId parameter in the request. This allows unauthorized users to finalize other users’ polls and convert them into events without proper authorization checks, potentially disrupting user workflows and causing data integrity and availability issues. This issue has been patched in version 4.5.4.

EPSS: 0.004 (30.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.

Affected products

Lukevella Rallly — versions < 4.5.4
Rallly

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
security-advisories@github.com (x_refsource_MISC, Release Notes)

Frequently asked questions

What is CVE-2025-65021?: CVE-2025-65021 is a critical-severity vulnerability in Lukevella Rallly, classified under Improper Authorization. CVSS score: 9.1/10. Published 2025-11-19.
How severe is CVE-2025-65021?: Critical severity. CVSS v3 base score is 9.1 out of 10.