| Package | Affected versions | Patched versions |
|---|---|---|
| mattermost server | ≥ 8.1.0, < 8.1.10≥ 9.2.0, < 9.2.6≥ 9.3.0, < 9.3.2≥ 9.4.0, < 9.4.3 | 8.1.109.2.69.3.29.4.3 |
Mattermost Jira plugin versions shipped with Mattermost versions 8.1.x before 8.1.10, 9.2.x before 9.2.6, 9.3.x before 9.3.2, and 9.4.x before 9.4.3 fail to escape user-controlled outputs when generating HTML pages, which allows an attacker to perform reflected cross-site scripting attacks against the users of the Mattermost server.
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