Is october/system affected by CVE-2026-24906?

Packagist october/system is affected in >=4.0.0 <4.1.10, <3.7.14.

Is CVE-2026-24906 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.3%.

medium

CVE-2026-24906

Q: Is CVE-2026-24906 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.3%.

Packagist · october/system

Summary

October CMS has Stored XSS in Backend Editor Markup Classes

Severity: medium
EPSS: 0.3% (p16)
Also known as: GHSA-6qmh-j78v-ffp7
Published: 2026-04-14

References

https://github.com/octobercms/october/security/advisories/GHSA-6qmh-j78v-ffp7
https://nvd.nist.gov/vuln/detail/CVE-2026-24906
https://github.com/octobercms/october

Related advisories

CVE-2021-32648 — high · Packagist/october/system
CVE-2026-26067 — medium · Packagist/october/system
CVE-2026-24907 — medium · Packagist/october/system
CVE-2025-61676 — medium · Packagist/october/system
CVE-2025-61674 — medium · Packagist/october/system

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.