CVE-2022-23655: Missing server signature validation in OctoberCMS

medium Affects october/system. Feed 2026.10.29.4, updated 2026-10-29; published ; advisory modified .

Missing server signature validation in OctoberCMS

Package
october/system Composer
Affected versions
>=1.1.0 and <1.1.11 or <1.0.475
Fixed in
1.1.11, 1.0.475
Severity
medium  CVSS 4.8
Exploitation
not on CISA KEV · EPSS 1% (50.8th percentile)
Published
2022-02-24
Source
osv.dev

References

CWE-347
NVD recordoctober/system advisories

Am I affected?

Find out in one command. phpwarden checks your composer.lock against this advisory and 20,000+ others, ranked by real-world exploitation (CISA KEV + EPSS). Free, offline, open data.

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