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Advisory record · GHSA-3qcp-9v8c-6jp7

Piranha CMS vulnerable to stored cross-site scripting (XSS)

CVSS 6.1 MediumEPSS 0.0029 · 21st percentile

Published by the GitHub Advisory Database at 23 Oct 2025, 18:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
PiranhaNuGet<=12.0.0No fixed version yet
Identifiers
GHSA-3qcp-9v8c-6jp7 · CVE-2025-61413
Weakness (CWE)
CWE-79
Tags
Published
23 Oct 2025
Updated
27 Oct 2025

Machine-written summary

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

Piranha CMS versions up to and including 12.0.0 are affected by a stored cross-site scripting flaw in the /manager/pages component. An attacker who can create a page can inject a crafted payload into its Markdown blocks, which can then run arbitrary scripts or HTML in users' browsers. The source gives few details on the required privileges or exact conditions. No fixed version is listed.

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
6.1 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N ADP (CISA-ADP)
  • CISA KEV Not listed.
  • EPSS 0.0029, the 21st percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 23 Oct 2025, 18:16 UTC Confirmed by NVD
  2. 31 Oct 2026, 15:22 UTC First seen by agentprime
  3. 31 Oct 2026, 15:22 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.