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Vulnerability record · CVE-2025-65021 · published 19 November 2025

CVE-2025-65021: Rallly improper authorization vulnerability

Rallly · Rallly

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.

9.1 CVSS 3.1 Critical EPSS 0.38% · top 70.3% CWE-285 · Improper authorizationCWE-639 · Insecure direct object reference
9.1CVSS 3.1 base score
0.38%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/lukevella/rallly/releases/tag/v4.5.4 Release Notes
https://github.com/lukevella/rallly/security/advisories/GHSA-x7w2-g548-4qg8 ExploitVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2025-47781Rallly vulnerabilityRallly is an open-source scheduling and collaboration tool. Versions up to and including 3.22.1 of the application features token based authenticatio…EPSS 0.60%8.1CVE-2025-65033Rallly improper authorization vulnerabilityRallly is an open-source scheduling and collaboration tool. Prior to version 4.5.4, an authorization flaw in the poll management feature allows any a…EPSS 0.33%8.1CVE-2025-65034Rallly insecure direct object reference vulnerabilityRallly is an open-source scheduling and collaboration tool. Prior to version 4.5.4, an improper authorization vulnerability allows any authenticated …EPSS 0.33%8.1CVE-2025-65029Rallly improper authorization vulnerabilityRallly is an open-source scheduling and collaboration tool. Prior to version 4.5.4, an insecure direct object reference (IDOR) vulnerability allows a…EPSS 0.33%7.1CVE-2025-66027Rallly information exposure vulnerabilityRallly is an open-source scheduling and collaboration tool. Prior to version 4.5.6, an information disclosure vulnerability exposes participant detai…EPSS 0.35%7.1CVE-2025-65030Rallly improper authorization vulnerabilityRallly is an open-source scheduling and collaboration tool. Prior to version 4.5.4, an authorization flaw in the comment deletion API allows any auth…EPSS 0.29%6.5CVE-2025-65028Rallly improper authorization vulnerabilityRallly is an open-source scheduling and collaboration tool. Prior to version 4.5.4, an insecure direct object reference (IDOR) vulnerability allows a…EPSS 0.26%6.5CVE-2025-65031Rallly improper authorization vulnerabilityRallly is an open-source scheduling and collaboration tool. Prior to version 4.5.4, an improper authorization flaw in the comment creation endpoint a…EPSS 0.25%

Source: NIST National Vulnerability Database (record CVE-2025-65021), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.