CVE-2025-65031: rallly Access Control Flaw — Exploit

Description

Rallly is an open-source scheduling and collaboration tool. Prior to version 4.5.4, an improper authorization flaw in the comment creation endpoint allows authenticated users to impersonate any other user by altering the authorName field in the API request. This enables attackers to post comments under arbitrary usernames, including privileged ones such as administrators, potentially misleading other users and enabling phishing or social engineering attacks. 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

Affected Products

Vendor	Product	Versions
rallly	rallly	< 4.5.4

References

Exploits

https://github.com/lukevella/rallly/security/advisories/GHSA-hhfc-6gq7-rrpm

Other References

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

Frequently Asked Questions

What is CVE-2025-65031? +

Rallly is an open-source scheduling and collaboration tool. Prior to version 4.5.4, an improper authorization flaw in the comment creation endpoint allows authenticated users to impersonate any other user by altering the authorName field in the API request. This enables attackers to post comments under arbitrary usernames, including privileged ones such as administrators, potentially misleading other users and enabling phishing or social engineering attacks. 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-2025-65031? +

CVE-2025-65031 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-2025-65031? +

CVE-2025-65031 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-2025-65031? +

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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