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October CMS has Safe Mode Bypass via CSS Preprocessor Compilers

🗓️ 21 Apr 2026 16:43:49Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 4 Views

October CMS CSS preprocessor bypass lets Editor read files in safe mode; patched 3.7.14 and 4.1.10.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-26067
21 Apr 202616:16
attackerkb
CNNVD
October 安全漏洞
21 Apr 202600:00
cnnvd
CVE
CVE-2026-26067
21 Apr 202616:16
cve
Cvelist
CVE-2026-26067 October: Safe Mode Bypass via CSS Preprocessor Compilers
21 Apr 202616:16
cvelist
EUVD
EUVD-2026-24153
21 Apr 202616:43
euvd
NVD
CVE-2026-26067
21 Apr 202617:16
nvd
OSV
GHSA-3888-Q23F-X7QH October CMS has Safe Mode Bypass via CSS Preprocessor Compilers
21 Apr 202616:43
osv
Positive Technologies
PT-2026-34002
21 Apr 202600:00
ptsecurity
Snyk
Incorrect Authorization
21 Apr 202618:31
snyk
Vulnrichment
CVE-2026-26067 October: Safe Mode Bypass via CSS Preprocessor Compilers
21 Apr 202616:16
vulnrichment
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Vulners
Node
octobersystemRange4.0.04.1.10composer
OR
octobersystemRange<3.7.14composer

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24 Apr 2026 21:06Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.14.9
EPSS0.00054
SSVC
4