CVE-2021-29452

Any logged in user could edit any other logged in user.

Description

a12n-server is an npm package which aims to provide a simple authentication system. A new HAL-Form was added to allow editing users in version 0.18.0. This feature should only have been accessible to admins. Unfortunately, privileges were incorrectly checked allowing any logged in user to make this change. Patched in v0.18.2.

Categories

8.1
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.25%
Third-Party Advisory github.com
Affected: curveball a12n-server
Published at:
Updated at:

References

Link Tags
https://github.com/curveball/a12n-server/security/advisories/GHSA-8hw9-22v6-9jr9 third party advisory
https://www.npmjs.com/package/%40curveball/a12n-server

Frequently Asked Questions

What is the severity of CVE-2021-29452?
CVE-2021-29452 has been scored as a high severity vulnerability.
How to fix CVE-2021-29452?
To fix CVE-2021-29452, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-29452 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-29452 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-29452?
CVE-2021-29452 affects curveball a12n-server.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.