Authorization bypass through user-controlled key in ActivityPub - CVE-2023-3707
Published: October 18, 2023
Vulnerability identifier: #VU82206
CSH Severity: Low
CVSS v4.0: 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
Vendor: Matthias Pfefferle
Affected software:
ActivityPub
ActivityPub
Detailed vulnerability 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
How to mitigate CVE-2023-3707
Install updates from vendor's website.