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I. Basic Information for CVE-2025-55035
Vulnerability Information

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Vulnerability Title
Mattermost Desktop DoS when user has basic authentication server configured
Source: NVD (National Vulnerability Database)
Vulnerability Description
Mattermost Desktop App versions <=5.13.0 fail to manage modals in the Mattermost Desktop App that stops a user with a server that uses basic authentication from accessing their server which allows an attacker that provides a malicious server to the user to deny use of the Desktop App via having the user configure the malicious server and forcing a modal popup that cannot be closed.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
对因果或异常条件的不恰当检查
Source: NVD (National Vulnerability Database)
Vulnerability Title
Mattermost 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mattermost是美国Mattermost公司的一个开源协作平台。 Mattermost 5.13.0及之前版本存在安全漏洞,该漏洞源于模态窗口管理不当,可能导致攻击者通过恶意服务器配置强制弹出无法关闭的模态窗口,从而拒绝用户使用桌面应用程序。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
MattermostMattermost 0 ~ 5.0.13 -
II. Public POCs for CVE-2025-55035
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III. Intelligence Information for CVE-2025-55035
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IV. Related Vulnerabilities
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