CVSS: 6.8EPSS: 0%CPEs: 2EXPL: 0CVE-2023-1775 – Unsanitized events sent over Websocket to regular users in a High Availability environment
https://notcve.org/view.php?id=CVE-2023-1775
31 Mar 2023 — When running in a High Availability configuration, Mattermost fails to sanitize some of the user_updated and post_deleted events broadcast to all users, leading to disclosure of sensitive information to some of the users with currently connected Websocket clients. • https://mattermost.com/security-updates • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-668: Exposure of Resource to Wrong Sphere •
CVSS: 5.5EPSS: 0%CPEs: 2EXPL: 0CVE-2023-1774 – Unauthorized email invite to a private channel
https://notcve.org/view.php?id=CVE-2023-1774
31 Mar 2023 — When processing an email invite to a private channel on a team, Mattermost fails to validate the inviter's permission to that channel, allowing an attacker to invite themselves to a private channel. • https://mattermost.com/security-updates • CWE-862: Missing Authorization •
CVSS: 6.4EPSS: 0%CPEs: 1EXPL: 0CVE-2023-1421 – Reflected XSS in OAuth flow completion endpoints
https://notcve.org/view.php?id=CVE-2023-1421
15 Mar 2023 — A reflected cross-site scripting vulnerability in the OAuth flow completion endpoints in Mattermost allows an attacker to send AJAX requests on behalf of the victim via sharing a crafted link with a malicious state parameter. • https://mattermost.com/security-updates • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •
CVSS: 3.3EPSS: 0%CPEs: 1EXPL: 0CVE-2023-27266 – Disclosure of team owner email address when when accessing the teams API
https://notcve.org/view.php?id=CVE-2023-27266
27 Feb 2023 — Mattermost fails to honor the ShowEmailAddress setting when constructing a response to the /api/v4/users/me/teams API endpoint, allowing an attacker with team admin privileges to learn the team owner's email address in the response. • https://mattermost.com/security-updates • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 3.3EPSS: 0%CPEs: 1EXPL: 0CVE-2023-27265 – Disclosure of team owner email address when regenerating Invite ID
https://notcve.org/view.php?id=CVE-2023-27265
27 Feb 2023 — Mattermost fails to honor the ShowEmailAddress setting when constructing a response to the "Regenerate Invite Id" API endpoint, allowing an attacker with team admin privileges to learn the team owner's email address in the response. • https://mattermost.com/security-updates • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-668: Exposure of Resource to Wrong Sphere •
CVSS: 6.8EPSS: 0%CPEs: 1EXPL: 1CVE-2022-3257 – Server-side Denial of Service while processing a specifically crafted GIF file
https://notcve.org/view.php?id=CVE-2022-3257
23 Sep 2022 — Mattermost version 7.1.x and earlier fails to sufficiently process a specifically crafted GIF file when it is uploaded while drafting a post, which allows authenticated users to cause resource exhaustion while processing the file, resulting in server-side Denial of Service. Mattermost versión 7.1.x y anteriores, no procesan suficientemente un archivo GIF específicamente diseñado cuando es descargado mientras es redactada una publicación, lo que permite a usuarios autenticados causar el agotamiento de los re... • https://hackerone.com/reports/1620170 • CWE-400: Uncontrolled Resource Consumption CWE-434: Unrestricted Upload of File with Dangerous Type •
CVSS: 6.8EPSS: 0%CPEs: 1EXPL: 0CVE-2022-3147 – Server-side Denial of Service while processing a specifically crafted JPEG file
https://notcve.org/view.php?id=CVE-2022-3147
09 Sep 2022 — Mattermost version 7.0.x and earlier fails to sufficiently limit the in-memory sizes of concurrently uploaded JPEG images, which allows authenticated users to cause resource exhaustion on specific system configurations, resulting in server-side Denial of Service. Mattermost versiones 7.0.x y anteriores, no limitan suficientemente los tamaños en memoria de las imágenes JPEG cargadas simultáneamente, lo que permite a usuarios autenticados causar el agotamiento de los recursos en configuraciones específicas de... • https://hackerone.com/reports/1549513 • CWE-400: Uncontrolled Resource Consumption CWE-770: Allocation of Resources Without Limits or Throttling •
CVSS: 6.8EPSS: 0%CPEs: 5EXPL: 0CVE-2022-2401 – Team members could access sensitive information of other users via an API call
https://notcve.org/view.php?id=CVE-2022-2401
14 Jul 2022 — Unrestricted information disclosure of all users in Mattermost version 6.7.0 and earlier allows team members to access some sensitive information by directly accessing the APIs. Una divulgación de información sin restricciones de todos los usuarios en Mattermost versiones 6.7.0 y anteriores, permite a miembros del equipo acceder a determinada información confidencial mediante el acceso directo a las API • https://mattermost.com/security-updates • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 5.6EPSS: 0%CPEs: 4EXPL: 0CVE-2022-2366 – Incorrect defaults can cause attackers to bypass rate limitations
https://notcve.org/view.php?id=CVE-2022-2366
11 Jul 2022 — Incorrect default configuration for trusted IP header in Mattermost version 6.7.0 and earlier allows attacker to bypass some of the rate limitations in place or use manipulated IPs for audit logging via manipulating the request headers. Una configuración incorrecta por defecto del encabezado IP confiable en Mattermost versiones 6.7.0 y anteriores, permite a atacantes omitir algunas de las limitaciones de velocidad presentes o usar IPs manipuladas para el registro de auditoría por medio de la manipulación de... • https://mattermost.com/security-updates • CWE-276: Incorrect Default Permissions •
CVSS: 6.5EPSS: 0%CPEs: 4EXPL: 0CVE-2022-1982 – A crafted SVG attachment can crash a Mattermost server
https://notcve.org/view.php?id=CVE-2022-1982
02 Jun 2022 — Uncontrolled resource consumption in Mattermost version 6.6.0 and earlier allows an authenticated attacker to crash the server via a crafted SVG attachment on a post. Un consumo no controlado de recursos en Mattermost versiones 6.6.0 y anteriores, permite a un atacante autenticado bloquear el servidor por medio de un archivo adjunto SVG diseñado en un mensaje • https://mattermost.com/security-updates • CWE-400: Uncontrolled Resource Consumption •