Threat and Vulnerability Intelligence Database

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CVE-2023-2808

Description: Mattermost fails to normalize UTF confusable characters when determining if a preview should be generated for a hyperlink, allowing an attacker to trigger link preview on a disallowed domain using a specially crafted link.

CVSS: MEDIUM (4.3)

EPSS Score: 0.06%

Source: CVE
December 7th, 2024 (6 months ago)

CVE-2023-2797

Description: Mattermost fails to sanitize code permalinks, allowing an attacker to preview code from private repositories by posting a specially crafted permalink on a channel.

CVSS: LOW (3.1)

EPSS Score: 0.06%

Source: CVE
December 7th, 2024 (6 months ago)

CVE-2023-2793

Description: Mattermost fails to validate links on external websites when constructing a preview for a linked website, allowing an attacker to cause a denial-of-service by a linking to a specially crafted webpage in a message.

CVSS: MEDIUM (6.5)

EPSS Score: 0.09%

Source: CVE
December 7th, 2024 (6 months ago)

CVE-2023-2792

Description: Mattermost fails to sanitize ephemeral error messages, allowing an attacker to obtain arbitrary message contents by a specially crafted /groupmsg command.

CVSS: MEDIUM (6.5)

EPSS Score: 0.06%

Source: CVE
December 7th, 2024 (6 months ago)

CVE-2023-2791

Description: When creating a playbook run via the /dialog API, Mattermost fails to validate all parameters, allowing an authenticated attacker to edit an arbitrary channel post.

CVSS: MEDIUM (4.3)

EPSS Score: 0.05%

Source: CVE
December 7th, 2024 (6 months ago)

CVE-2023-2788

Description: Mattermost fails to check if an admin user account active after an oauth2 flow is started, allowing an attacker with admin privileges to retain persistent access to Mattermost by obtaining an oauth2 access token while the attacker's account is deactivated.

CVSS: MEDIUM (6.2)

EPSS Score: 0.06%

Source: CVE
December 7th, 2024 (6 months ago)

CVE-2023-2787

Description: Mattermost fails to check channel membership when accessing message threads, allowing an attacker to access arbitrary posts by using the message threads API.

CVSS: MEDIUM (6.5)

EPSS Score: 0.06%

Source: CVE
December 7th, 2024 (6 months ago)

CVE-2023-2786

Description: Mattermost fails to properly check the permissions when executing commands allowing a member with no permissions to post a message in a channel to actually post it by executing channel commands.

CVSS: MEDIUM (4.3)

EPSS Score: 0.05%

Source: CVE
December 7th, 2024 (6 months ago)

CVE-2023-2785

Description: Mattermost fails to properly truncate the postgres error log message of a search query failure allowing an attacker to cause the creation of large log files which can result in Denial of Service

CVSS: MEDIUM (4.3)

EPSS Score: 0.05%

Source: CVE
December 7th, 2024 (6 months ago)

CVE-2023-2784

Description: Mattermost fails to verify if the requestor is a sysadmin or not, before allowing `install` requests to the Apps allowing a regular user send install requests to the Apps.

CVSS: MEDIUM (4.2)

EPSS Score: 0.05%

Source: CVE
December 7th, 2024 (6 months ago)