TI-2024-36254 Aliases CVE-2024-54138

XSS Vulnerability in NuGetGallery's Markdown Autolinks Processing

LOW 37CWE-79Published 2024-12-06 · Updated 2024-12-10

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Cross-site scripting
Confidentiality · integrity · availability: None · None · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

NuGet Gallery is a package repository that powers nuget.org. The NuGetGallery has a security vulnerability related to its handling of autolinks in Markdown content. While the platform properly filters out JavaScript from standard links, it does not adequately sanitize autolinks. This oversight allows attackers to exploit autolinks as a vector for Cross-Site Scripting (XSS) attacks. This vulnerability is fixed in 2024.12.06.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00378 32nd percentileScored 2026-11-07

Fix Fixed NuGetGallery (NuGet): 2024.12.06

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Microsoft	NuGetGallery	before 2024.12.06	2024.12.06	Patch available	CNA

NuGetGallery VendorMicrosoft Affected before 2024.12.06 Fixed in 2024.12.06 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:microsoft:nugetgallery::::::::	before 2024.12.06	Vulnerable	Microsoft

cpe:2.3:a:microsoft:nugetgallery:*:*:*:*:*:*:*:* Versions before 2024.12.06 Vulnerable ·Microsoft

Remediation

Fix · CNA NuGetGallery (NuGet) Fixed in 2024.12.06

Timeline

2026-10-02 Threatist record created from CVE-2024-54138

References

Patch 1

https://github.com/NuGet/NuGetGallery/pull/10296

Advisory 1

https://github.com/NuGet/NuGetGallery/security/advisories/GHSA-x448-p234-x5p8

TI-2024-31884 XSS vulnerability in NuGetGallery HTML attributes handling CVSS 3.1HIGH 8.2
TI-2024-24816 NuGetGallery's Markdown Autolinks Processing Vulnerable to Cross-site Scripting CVSS 3.1MEDIUM 6.1
TI-2020-01301 Cross-site scripting in Microsoft NuGetGallery CVSS 3.1MEDIUM 5.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences