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Advisory record · GHSA-h2vq-7gf2-qw9v

Umbraco CMS XXE Vulnerability

CVSS 5.5 MediumEPSS 0.011 · 64th percentile

Published by the GitHub Advisory Database at 17 May 2022, 00:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
UmbracoCms.WebNuGet<7.7.37.7.3
Identifiers
GHSA-h2vq-7gf2-qw9v · CVE-2017-15280
Weakness (CWE)
CWE-611
Tags
Published
17 May 2022
Updated
8 Nov 2023

Machine-written summary

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

Umbraco CMS (UmbracoCms.Web) versions before 7.7.3 are vulnerable to XML external entity (XXE) injection in the document type import dialog. An attacker who can submit crafted XML to that feature can read files on the server and send TCP requests to internal hosts, which is a server-side request forgery risk. Upgrade to version 7.7.3 or later. The source gives few details about the required privileges.

Written 9 Nov 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
5.5 Medium 3.0 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS 0.011, the 64th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:24 UTC First seen by agentprime
  2. 31 Oct 2026, 15:24 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.