VULNERABILITY INTELLIGENCE

CVE-2023-28853

CVSS score7.7 HIGH
EPSS probability1.28%
CISA KEVNot currently listed
Published2023-04-04
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Description

Mastodon is a free, open-source social network server based on ActivityPub Mastodon allows configuration of LDAP for authentication. Starting in version 2.5.0 and prior to versions 3.5.8, 4.0.4, and 4.1.2, the LDAP query made during login is insecure and the attacker can perform LDAP injection attack to leak arbitrary attributes from LDAP database. This issue is fixed in versions 3.5.8, 4.0.4, and 4.1.2.

Weakness classification

  • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
  • CWE-90: Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')

Primary references