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Advisory record · PKSA-3fqv-nq39-s3wg

Cross-site scripting in the comments bundle (see GHSA-628f-v4f6-p37r)

CVSS 9.3 CriticalCriticalEPSS 0.0028 · 20th percentile

Critical, because:

  • CVSS score 9.3: 9.0 or more.

How we decide what’s critical

Published by Packagist at 25 Aug 2026, 06:40 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
contao/contaoPackagist>=4.0.0, <5.3.50 || >=5.4.0, <5.7.125.3.50, 5.7.12
Identifiers
PKSA-3fqv-nq39-s3wg · CVE-2026-107845
Weakness (CWE)
CWE-79 · CWE-116
Tags
Published
25 Aug 2026
Updated
25 Aug 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
9.3 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0028, the 20th percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 25 Aug 2026, 06:40 UTC Confirmed by Packagist

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.