Summaryinfo

A vulnerability, which was classified as problematic, was found in Mattermost up to 9.5.7/9.8.2/9.9.1/9.10.0/9.11.0. This affects an unknown part of the component Email Notification Handler. The manipulation leads to protection mechanism. This vulnerability is uniquely identified as CVE-2024-39836. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to upgrade the affected component. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Mattermost up to 9.5.7/9.8.2/9.9.1/9.10.0/9.11.0. Affected by this issue is an unknown code block of the component Email Notification Handler. The manipulation with an unknown input leads to a protection mechanism vulnerability. Using CWE to declare the problem leads to CWE-693. The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product. Impacted is confidentiality, and integrity. CVE summarizes:

Mattermost versions 9.9.x <= 9.9.1, 9.5.x <= 9.5.7, 9.10.x <= 9.10.0 and 9.8.x <= 9.8.2 fail to ensure that remote/synthetic users cannot create sessions or reset passwords, which allows the munged email addresses, created by shared channels, to be used to receive email notifications and to reset passwords, when they are valid, functional emails.

The weakness was released by Juho Forsén. The advisory is available at mattermost.com. This vulnerability is handled as CVE-2024-39836 since 08/20/2024. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available.

Upgrading to version 9.5.8, 9.8.3, 9.9.2, 9.10.1 or 9.11.0 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Groupware Software

Name

• Mattermost

Version

• 9.0
• 9.1
• 9.2
• 9.3
• 9.4
• 9.5
• 9.5.0
• 9.5.1
• 9.5.2
• 9.5.3
• 9.5.4
• 9.5.5
• 9.5.6
• 9.5.7
• 9.6
• 9.7
• 9.8
• 9.8.0
• 9.8.1
• 9.8.2
• 9.9
• 9.9.0
• 9.9.1
• 9.10
• 9.10.0
• 9.11.0

License

• open-source

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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