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I. Basic Information for CVE-2025-46556
Vulnerability Information

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Vulnerability Title
MantisBT is Vulnerable to Denial-of-Service (DoS) attack via Excessive Note Length
Source: NVD (National Vulnerability Database)
Vulnerability Description
Mantis Bug Tracker (MantisBT) is an open source issue tracker. Versions 2.27.1 and below allow attackers to permanently corrupt issue activity logs by submitting extremely long notes (tested with 4,788,761 characters) due to a lack of server-side validation of note length. Once such a note is added, the activity stream UI fails to render; therefore, new notes cannot be displayed, effectively breaking all future collaboration on the issue. This issue is fixed in version 2.27.2.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
不加限制或调节的资源分配
Source: NVD (National Vulnerability Database)
Vulnerability Title
MantisBT 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MantisBT是MantisBT团队的一套基于Web的开源缺陷跟踪系统。该系统以Web操作的形式提供项目管理及缺陷跟踪服务。 MantisBT 2.27.1及之前版本存在安全漏洞,该漏洞源于未验证注释长度,可能导致活动日志永久损坏。
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
mantisbtmantisbt < 2.27.2 -
II. Public POCs for CVE-2025-46556
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III. Intelligence Information for CVE-2025-46556
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IV. Related Vulnerabilities
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