CVE-2025-65028: rallly Access Control Flaw

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 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.

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CVSS v3.1 Score

6.5

MEDIUM

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

Weakness Type (CWE)

CWE-285 CWE-285

CWE-639 CWE-639

CWE-862 Missing Authorization

Affected Products

Vendor	Product	Versions
rallly	rallly	< 4.5.4

References

Advisories & Patches

https://github.com/lukevella/rallly/security/advisories/GHSA-pchc-v5hg-f5gp

Exploits

https://github.com/lukevella/rallly/security/advisories/GHSA-pchc-v5hg-f5gp

Other References

https://github.com/lukevella/rallly/releases/tag/v4.5.4

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2025-65028? +

CVE-2025-65028 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-65028? +

CVE-2025-65028 affects products from rallly, specifically: rallly. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-65028? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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