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I. Basic Information for CVE-2026-33517
Vulnerability Information

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Vulnerability Title
MantisBT Vulnerable to Stored HTML Injection in Tag Delete Confirmation
Source: NVD (National Vulnerability Database)
Vulnerability Description
Mantis Bug Tracker (MantisBT) is an open source issue tracker. In version 2.28.0, when deleting a Tag (tag_delete.php), improper escaping of its name when displaying the confirmation message allows an attacker to inject HTML and, if CSP settings permit, achieve execution of arbitrary JavaScript. Version 2.28.1 fixes the issue. Workarounds include reverting commit d6890320752ecf37bd74d11fe14fe7dc12335be9 and/or manually editing language files to remove the sprintf placeholder `%1$s` from `$s_tag_delete_message` string.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Mantis Bug Tracker 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mantis Bug Tracker(MantisBT)是Mantis Bug Tracker开源的一个 bug 跟踪器。 Mantis Bug Tracker 2.28.0版本存在跨站脚本漏洞,该漏洞源于删除标签时名称转义不当,可能导致跨站脚本攻击。
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 = 2.28.0 -
II. Public POCs for CVE-2026-33517
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III. Intelligence Information for CVE-2026-33517
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IV. Related Vulnerabilities
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