#VU82205 Authorization bypass through user-controlled key in ActivityPub - CVE-2023-3706
Published: October 18, 2023
Vulnerability identifier: #VU82205
Vulnerability risk: 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-2023-3706
CWE-ID: CWE-639
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
ActivityPub
ActivityPub
Software vendor:
Matthias Pfefferle
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 titles to be displayed are public and belong to the plugin. A remote user can retrieve the title of arbitrary post via an IDOR vector.
Remediation
Install updates from vendor's website.