What’s Vulnerable › Vulnerabilities

CVE-2025-65032: Rallly Has an IDOR Vulnerability in Participant Rename Function Allows Unauthorized Modification of Other Users’ Names

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-11-19 · updated 2026-10-18
• Weakness: CWE-639

Description

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 change the display names of other participants in polls without being an admin or the poll owner. By manipulating the participantId parameter in a rename request, an attacker can modify another user’s name, violating data integrity and potentially causing confusion or impersonation attacks. This issue has been patched in version 4.5.4.

Affected products

• lukevella rallly: before 4.5.4 — fixed in 4.5.4

How to fix

Upgrade to a fixed version: lukevella rallly 4.5.4. Check the vendor advisory for mitigations.

References

• https://github.com/lukevella/rallly/releases/tag/v4.5.4
• https://github.com/lukevella/rallly/security/advisories/GHSA-q9m7-chfx-43xw
• https://github.com/lukevella/rallly/security/advisories/GHSA-q9m7-chfx-43xw

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