Medium

Cross-site Scripting in PiranhaCMS

  • Disclosed: 27.10.2021
  • Updated: 11.10.2026 11:22

In PiranhaCMS, versions 7.0.0 to 9.1.1 are vulnerable to stored XSS due to the page title improperly sanitized. By creating a page with a specially crafted page title, a low privileged user can trigger arbitrary JavaScript execution.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
.NET (NuGet) Piranha >= 7.0.0, < 9.2.0 9.2.0

References

CVSS score 5.4/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE)
CWE-79
Platform
.NET (NuGet)
Package
Piranha
Disclosed
27.10.2021
Updated
11.10.2026 11:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-jvjp-vh27-r9h5 - CC BY 4.0

Vulnerability history: Piranha

All published vulnerabilities of this package (.NET (NuGet)), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
8
First → latest
10.2021 12.2025
Without a fix
6
Exploited in attacks
0

Severity breakdown

  • High 1
  • Medium 5
  • Low 2

Disclosures per year

  1. 2021: 2
  2. 2022: 0
  3. 2023: 0
  4. 2024: 2
  5. 2025: 4
  6. 2026: 0
  1. Medium CVE-2025-61413 <= 12.0.0 no fix
  2. Medium · 6.8 CVE-2025-57692 <= 12.0 no fix
  3. Medium · 4.7 CVE-2024-55342 <= 11.1.0 no fix
  4. Medium · 4.7 CVE-2024-55341 <= 11.1.0 no fix
  5. High · 8.1 CVE-2021-25976 >= 4.0.0-alpha1, < 10.0-alpha1 10.0-alpha1
  6. Cross-site Scripting in PiranhaCMS this entry
    Medium · 5.4 CVE-2021-25977 >= 7.0.0, < 9.2.0 9.2.0

Know which vulnerabilities affect your application

With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.

Connect your application
DockRay newsletter

Application security in your inbox

Important vulnerabilities, actionable guidance and practical advice for your applications. Choose your technologies and follow what matters to your project.

  • A daily digest of new vulnerabilities, critical ones included.
  • Notifications about important updates.
  • Practical advice on application security and monitoring.

Leave empty to receive updates for every technology.

Free to subscribe. Unsubscribe with one click in any email.