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CVE-2026-40607— MantisBT is Vulnerable to Stored XSS Through its Saved-Filter Owner Column

AI Predicted 5.4 Difficulty: Moderate EPSS 0.04% · P12

Possible ATT&CK Techniques 1AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 1

VendorProductVersion RangeStatus
mantisbtmantisbt>= 2.1.0, < 2.28.2affected
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I. Basic Information for CVE-2026-40607

Vulnerability Information
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Vulnerability Title
MantisBT is Vulnerable to Stored XSS Through its Saved-Filter Owner Column
Source: NVD (National Vulnerability Database)
Vulnerability Description
Mantis Bug Tracker (MantisBT) is an open source issue tracker. In versions 2.11.0 through 2.28.1, a Stored XSS vulnerability is caused by incorrect escaping of a saved filter's owner, allowing an attacker to inject arbitrary HTML on systems where $g_show_user_realname = ON. Note that By default, only users with Manager access level or above can save their filters publicly. This issue has been fixed in version 2.28.2. If developers are unable to update immediately, they can work around this issue by preventing display of users' real names (set $g_ show_user_realname = OFF; in configuration), and restricting the ability to store filters (set $g_stored_query_create_threshold / $g_stored_query_create_shared_threshold to NOBODY).
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)

Affected Products

VendorProductAffected VersionsCPESubscribe
mantisbtmantisbt >= 2.1.0, < 2.28.2 -

II. Public POCs for CVE-2026-40607

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III. Intelligence Information for CVE-2026-40607

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Patches & Fixes for CVE-2026-40607 (1)

Vendor Advisories for CVE-2026-40607 (2)

Same Patch Batch · mantisbt · 2026-05-22 · 4 CVEs total

CVE-2026-40597MantisBT has a Content Security Policy bypass via attachments
CVE-2026-40596MantisBT is vulnerable to XSS and potential account takeover via user font family preferen
CVE-2026-40598MantisBT has Potential Referer-Based Reflected HTML Injection / XSS in Tag Update Page

IV. Related Vulnerabilities

Same product: mantisbt
Same vendor: mantisbt
Same weakness: CWE-79

V. Comments for CVE-2026-40607

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