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Advisory record · GHSA-q9q2-3ppx-mwqf

Graylog Allows Stored Cross-Site Scripting via Files Plugin and API Browser

CVSS 7.3 High

Published by the GitHub Advisory Database at 7 May 2025, 15:27 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.graylog2:graylog2-serverMaven<6.2.06.2.0
Identifiers
GHSA-q9q2-3ppx-mwqf
Weakness (CWE)
CWE-79
Tags
Published
7 May 2025
Updated
10 Sept 2026

Machine-written summary

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

Graylog server (org.graylog2:graylog2-server) versions before 6.2.0 are vulnerable to stored cross-site scripting through the Files plugin and the API browser. An attacker with the FILES_CREATE permission can upload JavaScript that runs in the Graylog frontend when a user requests the file in the API browser, allowing authenticated API requests as that user and session takeover. Upgrade to version 6.2.0 or later, where the affected generic API has been removed and additional escaping added.

Written 2 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
7.3 High 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS No score.

Timeline

  1. 31 Oct 2026, 14:17 UTC First seen by agentprime
  2. 31 Oct 2026, 14:17 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.