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Advisory record · GHSA-396x-xmvh-p563

Snipe-IT: Stored XSS via Inline XML Rendering in the Uploaded Files API

CVSS 8.7 HighEPSS 0.0024 · 15th percentile

Published by the GitHub Advisory Database at 24 Sept 2026, 18:19 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
snipe/snipe-itPackagist<8.7.08.7.0
Identifiers
GHSA-396x-xmvh-p563 · CVE-2026-63498 · PKSA-yjnz-vzp8-t7f6
Weakness (CWE)
CWE-79
Tags
Published
24 Sept 2026
Updated
24 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Snipe-IT versions before 8.7.0 (Packagist snipe/snipe-it) have a stored cross-site scripting flaw in the uploaded-files API, which serves XML files inline without the safe-inline check used by the web controller. An authenticated user with file access to a supported object could upload an XSLT stylesheet and an XML file referencing it, and when another authorized user opens the XML file through the API with inline rendering, script could run in the Snipe-IT origin with that user's privileges. Upgrade to Snipe-IT 8.7.0 or later, which contains the fix.

Written 31 Oct 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.7 High 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0024, the 15th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 13:54 UTC First seen by agentprime
  2. 31 Oct 2026, 13:54 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.