![icon](https://www.mend.io/vulnerability-database/wp-content/themes/whitesource/img/search_cube.png)
We found results for “”
CVE-2022-39203
Good to know:
![A fix is available icon](https://www.mend.io/vulnerability-database//wp-content/themes/whitesource/img/icon2.png)
Date: September 13, 2022
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 grant themselves permissions in the channel. The vulnerability has been patched in matrix-appservice-irc 0.35.0. As a workaround operators may disable dynamic channel joining via `dynamicChannels.enabled` to prevent users from joining new channels, which prevents any new channels being bridged outside of what is already bridged, and what is specified in the config.
Language: JS
Severity Score
Related Resources (4)
Severity Score
Weakness Type (CWE)
Improper Privilege Management
CWE-269Top Fix
![icon](https://www.mend.io/vulnerability-database//wp-content/themes/whitesource/img/sec5.png)
CVSS v3.1
Base Score: |
|
---|---|
Attack Vector (AV): | NETWORK |
Attack Complexity (AC): | LOW |
Privileges Required (PR): | LOW |
User Interaction (UI): | NONE |
Scope (S): | UNCHANGED |
Confidentiality (C): | HIGH |
Integrity (I): | HIGH |
Availability (A): | HIGH |