SB2023031767 - Improper access control in Discourse
Published: March 17, 2023 Updated: July 1, 2026
Security Bulletin ID
SB2023031767
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper access control (CVE-ID: CVE-2023-23622)
CWE-ID: CWE-284 - Improper Access Control
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to improper access control in tag topic count handling when viewing tags. A remote attacker can poll a visible tag to determine whether new topics were created in read restricted categories to disclose sensitive information.
User interaction is required to view the tag information.
Remediation
Install update from vendor's website.