CVE-2025-20630: Mobile crash via object that can't be cast to String in Attachment Field
First published: Thu Jan 16 2025(Updated: )
Mattermost Mobile versions <=2.22.0 fail to properly handle posts with attachments containing fields that cannot be cast to a String, which allows an attacker to cause the mobile to crash via creating and sending such a post to a channel.
Credit: responsibledisclosure@mattermost.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mattermost | <=2.22.0 |
Remedy
Update Mattermost Mobile to version 2.23.0 or higher.
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-20630?
CVE-2025-20630 is classified as a moderate severity vulnerability.
How do I fix CVE-2025-20630?
To fix CVE-2025-20630, update to Mattermost Mobile version 2.22.1 or later.
What impact does CVE-2025-20630 have on Mattermost Mobile?
CVE-2025-20630 allows an attacker to crash the mobile app by sending a malicious post with non-string fields.
Which versions of Mattermost Mobile are affected by CVE-2025-20630?
Mattermost Mobile versions 2.22.0 and earlier are affected by CVE-2025-20630.
Is there a workaround for CVE-2025-20630?
There is no known workaround for CVE-2025-20630; updating to a secure version is required.
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