VULNERABILITY INTELLIGENCE

CVE-2021-30463

CVSS score7.8 HIGH
EPSS probability0.50%
CISA KEVNot currently listed
Published2021-04-08
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

VestaCP through 0.9.8-24 allows attackers to gain privileges by creating symlinks to files for which they lack permissions. After reading the RKEY value from user.conf under the /usr/local/vesta/data/users/admin directory, the admin password can be changed via a /reset/?action=confirm&user=admin&code= URI. This occurs because chmod is used unsafely.

Weakness classification

  • CWE-59: Improper Link Resolution Before File Access ('Link Following')

Primary references