GHSA-jc6w-8r7f-vmp5

Suggest an improvement
Source
https://github.com/advisories/GHSA-jc6w-8r7f-vmp5
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-jc6w-8r7f-vmp5/GHSA-jc6w-8r7f-vmp5.json
JSON Data
https://api.test.osv.dev/v1/vulns/GHSA-jc6w-8r7f-vmp5
Aliases
Published
2022-05-24T17:21:02Z
Modified
2025-12-09T17:55:58.403744Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Mattermost Server vulnerable to Denial of Service through `@` character prefix inserted into JavaScript field names
Details

An issue was discovered in Mattermost Server before 4.5.0, 4.4.5, 4.3.4, and 4.2.2. It allows attackers to cause a denial of service (application crash) via an @ character before a JavaScript field name.

Database specific 
{
    "severity": "HIGH",
    "github_reviewed_at": "2025-12-03T19:29:16Z",
    "cwe_ids": [
        "CWE-248"
    ],
    "nvd_published_at": "2020-06-19T17:15:00Z",
    "github_reviewed": true
}
References

Affected packages

Go
github.com/mattermost/mattermost-server

Package

Name
github.com/mattermost/mattermost-server
View open source insights on deps.dev
Purl
pkg:golang/github.com/mattermost/mattermost-server

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.2.2

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-jc6w-8r7f-vmp5/GHSA-jc6w-8r7f-vmp5.json"
github.com/mattermost/mattermost-server

Package

Name
github.com/mattermost/mattermost-server
View open source insights on deps.dev
Purl
pkg:golang/github.com/mattermost/mattermost-server

Affected ranges

Type
SEMVER
Events
Introduced
4.3.0-rc1
Fixed
4.3.4

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-jc6w-8r7f-vmp5/GHSA-jc6w-8r7f-vmp5.json"
github.com/mattermost/mattermost-server

Package

Name
github.com/mattermost/mattermost-server
View open source insights on deps.dev
Purl
pkg:golang/github.com/mattermost/mattermost-server

Affected ranges

Type
SEMVER
Events
Introduced
4.4.0-rc1
Fixed
4.4.5

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-jc6w-8r7f-vmp5/GHSA-jc6w-8r7f-vmp5.json"
github.com/mattermost/mattermost-server

Package

Name
github.com/mattermost/mattermost-server
View open source insights on deps.dev
Purl
pkg:golang/github.com/mattermost/mattermost-server

Affected ranges

Type
SEMVER
Events
Introduced
4.5.0-rc1
Fixed
4.5.0

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-jc6w-8r7f-vmp5/GHSA-jc6w-8r7f-vmp5.json"