Privilege escalation in Matrix Matrix_irc_bridge
CVE-2022-39203
matrix-appservice-irc is an open source Node.js IRC bridge for Matrix. Attackers can specify a specific string of characters, which would confuse the bridge into combining an attacker-owned channel and an existing channel, allowing them to…
Vulnerability class: Privilege Escalation
EPSS: 0.007 (48.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Matrix Matrix_irc_bridge
- Matrix-org Matrix-appservice-irc — versions < 0.35.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_MISC, Vendor Advisory)
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory, Mitigation)
Frequently asked questions
- What is CVE-2022-39203?
- CVE-2022-39203 is a high-severity vulnerability in Matrix Matrix_irc_bridge, classified under Improper Privilege Management. CVSS score: 8.8/10. Published 2022-09-13.
- How severe is CVE-2022-39203?
- High severity. CVSS v3 base score is 8.8 out of 10.