CVE-2026-40596— MantisBT is vulnerable to XSS and potential account takeover via user font family preference update
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-40596
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
MantisBT is vulnerable to XSS and potential account takeover via user font family preference update
Source: CVE Program / CVE List V5
Vulnerability Description
Mantis Bug Tracker (MantisBT) is an open source issue tracker. Versions 2.11.0 through 2.28.1 allow any authenticated user to inject arbitrary HTML by updating their account's font family. Upon exploitation, an XSS payload would be reflected on every MantisBT page. Leveraging another vulnerability (CSP bypass, see GHSA-9c3j-xm6v-j7j3), the attacker could achieve account takeover. This issue has been fixed in version 2.28.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:L/VA:L/SC:H/SI:H/SA:L
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
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 2.11.0版本至2.28.1版本存在跨站脚本漏洞，该漏洞源于允许任何认证用户通过更新账户字体系列注入任意HTML，可能导致跨站脚本攻击。以下版本受到影响：2.11.0版本至2.28.1版本。
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
II. Public POCs for CVE-2026-40596
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-40596
请登录查看更多情报信息。
Patches & Fixes for CVE-2026-40596 (2)
Vendor Advisories for CVE-2026-40596 (3)
Same Patch Batch · mantisbt · 2026-05-22 · 4 CVEs total
| CVE-2026-40597 | MantisBT has a Content Security Policy bypass via attachments | |
| CVE-2026-40598 | MantisBT has Potential Referer-Based Reflected HTML Injection / XSS in Tag Update Page | |
| CVE-2026-40607 | MantisBT is Vulnerable to Stored XSS Through its Saved-Filter Owner Column |
IV. Related Vulnerabilities
Same product: mantisbt
- CVE-2026-42071
MantisBT: Private Bugnote Attachment Content Leak via REST A - CVE-2026-42070
MantisBT: Authorization Bypass in Bugnote Editing via Issue - CVE-2026-44655
MantisBT: Stored XSS on Move Attachments Admin Page - CVE-2026-41897
MantisBT: Reflected XSS in Rendering Dynamic Custom Textarea - CVE-2026-44657
MantisBT: Stored XSS in File Download
Same vendor: mantisbt
- CVE-2026-42071
MantisBT: Private Bugnote Attachment Content Leak via REST A - CVE-2026-42070
MantisBT: Authorization Bypass in Bugnote Editing via Issue - CVE-2026-44655
MantisBT: Stored XSS on Move Attachments Admin Page - CVE-2026-41897
MantisBT: Reflected XSS in Rendering Dynamic Custom Textarea - CVE-2026-44657
MantisBT: Stored XSS in File Download
Same weakness: CWE-79
- CVE-2026-67328
@better-auth/sso before 1.6.21 Account Takeover via SSO - CVE-2026-67333
better-auth before 1.6.13 Stored XSS via javascript redirect - CVE-2025-71404
better-auth before 1.1.16 Reflected XSS via error parameter - CVE-2026-67352
luci-app-https-dns-proxy Stored XSS via resolver_url - CVE-2026-15644
Powerkit <= 3.1.0 - Authenticated (Contributor+) Stored Cros
V. Comments for CVE-2026-40596
No comments yet