cve.bz

CVE-2021-29452

6.5 mediumEPSS 0.8%

Medium (6.5) in curveballjs a12n-server. EPSS 0.8% chance of exploitation in the next 30 days. Fixed in @curveball/a12n-server 0.18.2.

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.

Severity

CVSS 3.1

6.5 medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
EPSS
0.8% chance of exploitation in the next 30 days; higher than 55% of CVEs (scores of 2026-10-31)
CWEs
CWE-863, CWE-269
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-8hw9-22v6-9jr9npm@curveball/a12n-server>=0.18.0 <0.18.20.18.2

References

Check your stackJSON