CVE-2023-28853 - CVE House
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Status published High CVE-2023-28853

Mastodon's blind LDAP injection in login allows the attacker to leak arbitrary attributes from LDAP database

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

mastodon
Vulnerable Versions:
>= 2.5.0, < 3.5.8, >= 4.0.0, < 4.0.4, >= 4.1.0, < 4.1.2

Timeline

Official Publish: April 4th, 2023
Last Modified: February 13th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Weaknesses (CWE)

CWE-90

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.