🛡️ CVE-2022-1002 — mattermost
Description
Mattermost 6.3.0 and earlier fails to properly sanitize the HTML content in the email invitation sent to guest users, which allows registered users with special permissions to invite guest users to inject unescaped HTML content in the email invitations.
How this vulnerability can be exploited
This issue can be reached over the network, attack complexity is high, an attacker needs administrative privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity low, availability none.
Weakness class
CVE-2022-1002 is classified as CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS). The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream…
Affected software
CVE-2022-1002 is recorded against 1 package.
- mattermost (fixed in 6.4.0)
Timeline and source
Published on 18 March 2022 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. Record sourced from NVD.
References
Details
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:N
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| mattermost | — | 6.4.0 |
References
Similar Threats
- High CVE-2020-14447
- High CVE-2020-14448
- High CVE-2020-14450
- Medium CVE-2020-14452
- High CVE-2020-14453
Exploit Protection
Are you running mattermost?
CVE-2022-1002 carries CVSS 2.0 Low rating and a public exploit already exists. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.
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