CVE-2020-15247
5.2 · MEDIUMOverview
CVE-2020-15247 is a medium-severity vulnerability affecting octobercms october. It was published on November 23, 2020 and has a CVSS 3.1 base score of 5.2 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.2, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
October is a free, open-source, self-hosted CMS platform based on the Laravel PHP Framework. In October CMS from version 1.0.319 and before version 1.0.469, an authenticated backend user with the cms.manage_pages, cms.manage_layouts, or cms.manage_partials permissions who would normally not be permitted to provide PHP code to be executed by the CMS due to cms.enableSafeMode being enabled is able to write specific Twig code to escape the Twig sandbox and execute arbitrary PHP. This is not a problem for anyone that trusts their users with those permissions to normally write & manage PHP within the CMS by not having cms.enableSafeMode enabled, but would be a problem for anyone relying on cms.enableSafeMode to ensure that users with those permissions in production do not have access to write & execute arbitrary PHP. Issue has been patched in Build 469 (v1.0.469) and v1.1.0.
Remediation
Check the references section for vendor advisories and patches from octobercms. Update october to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| octobercms | october | >= 1.0.319, < 1.0.469 | Affected |
References
Frequently Asked Questions
What is CVE-2020-15247?
CVE-2020-15247 is a medium-severity vulnerability affecting octobercms october. It was published on November 23, 2020 and has a CVSS 3.1 base score of 5.2 (MEDIUM).
How severe is CVE-2020-15247?
This vulnerability has a CVSS 3.1 base score of 5.2, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2020-15247?
Check the references section for vendor advisories and patches from octobercms. Update october to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2020-15247?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-15247 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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