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CVE-2026-40472

| EUVDEUVD-2026-25235 CRITICAL
Cross-site Scripting (XSS) (CWE-79)
2026-04-23 redhat-cnalr GHSA-8fw8-47cx-j4q4
XSS
9.9
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
9.9 CRITICAL
AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
Low

Lifecycle Timeline

2
EUVD ID Assigned
Apr 23, 2026 - 16:00 euvd
EUVD-2026-25235
CVE Published
Apr 23, 2026 - 15:00 nvd
CRITICAL 9.9

DescriptionCVE.org

In hackage-server, user-controlled metadata from .cabal files are rendered into HTML href attributes without proper sanitization, enabling stored Cross-Site Scripting (XSS) attacks.

Analysis

In hackage-server, user-controlled metadata from .cabal files are rendered into HTML href attributes without proper sanitization, enabling stored Cross-Site Scripting (XSS) attacks.

Same weakness CWE-79 – Cross-site Scripting (XSS)

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Same technique XSS

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CVE-2026-40472 vulnerability details – vuln.today
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