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CVE-2024-26481

MEDIUM

CVE-2024-26481 is a medium-severity (CVSS 4.7) Cross-site Scripting (XSS) vulnerability in getkirby/cms. O3 Security confirms whether CVE-2024-26481 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Kirby vulnerable to self cross-site scripting (self-XSS) in the URL field

Also known asGHSA-57f2-8p89-66x6
Published
Feb 22, 2024
Updated
Jul 15, 2026
Affected
6 pkgs
Patched
6 / 6
Exploits
None indexed

Blast Radius

6 pkgs affected
🐘getkirby/cms🐘getkirby/cms🐘getkirby/cms🐘getkirby/cms🐘getkirby/cms🐘getkirby/cms

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

Kirby CMS v4.1.0 was discovered to contain a reflected self-XSS vulnerability via the URL parameter.

Affected Packages

6 total 6 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistgetkirby/cmsall versions3.6.6.5
🐘Packagistgetkirby/cms3.7.0&&< 3.7.5.43.7.5.4
🐘Packagistgetkirby/cms3.8.0&&< 3.8.4.33.8.4.3
🐘Packagistgetkirby/cms3.9.0&&< 3.9.8.13.9.8.1
🐘Packagistgetkirby/cms3.10.0&&< 3.10.0.13.10.0.1
🐘Packagistgetkirby/cms4.0.0&&< 4.1.14.1.1

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for getkirby/cms. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update getkirby/cms to 3.6.6.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2024-26481 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether CVE-2024-26481 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to CVE-2024-26481. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Kirby CMS v4.1.0 was discovered to contain a reflected self-XSS vulnerability via the URL parameter.
O3 Security · Impact-Aware SCA

Is CVE-2024-26481 in your dependencies?

O3 detects CVE-2024-26481 across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.