CVE-2023-28853

PoC —

CVSS 3.1

6.5 medium

EPSS

1%p68

Published

Apr 4, 2023 (Apr 4, 2023)

Modified

Jun 17, 2026

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.

Vendors: joinmastodon
Products: mastodon
Weakness: CWE-90, CWE-74
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (1.3%)

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