Authorization bypass through user-controlled key in ActivityPub - CVE-2023-3707

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Main Vulnerability Database Vulnerabilities #VU82206

Authorization bypass through user-controlled key in ActivityPub - CVE-2023-3707

Published: October 18, 2023


Vulnerability identifier: #VU82206
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear
CVE-ID: CVE-2023-3707
CWE-ID: CWE-639
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
ActivityPub
Software vendor:
Matthias Pfefferle

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to the affected plugin does not ensure that post contents to be displayed are public and belong to the plugin. A remote user can retrieve the content of arbitrary post via an IDOR vector


Remediation

Install updates from vendor's website.

External links