Veracode Vulnerability DatabaseVERACODE:41023Missing Authorization
4.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
0.0005 Low
EPSS
Percentile
17.7%
github.com/mattermost/mattermost-server is vulnerable to Missing Authorization. The vulnerability exists because the library does not properly sanitize the embedded posts transmitted over websockets, allowing an attacker to send a malicious POST request to the App’s webhook path (apps built using Apps Framework) and modify the contents of messages posted by the app.
References
github.com/advisories/GHSA-455c-vqrf-mghr
github.com/mattermost/mattermost/commit/b08dcd2471f19f5da32ddb7d683869e8a142b984
github.com/mattermost/mattermost/commit/d7ac4ef12ddc4f511430b0d41b67f501bf4819b2
github.com/mattermost/mattermost/commit/dd52fded7f3e68642443ef68dc614689680e6e59
mattermost.com/security-updates/
Related
4.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
0.0005 Low
EPSS
Percentile
17.7%