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CVE-2015-7809

6.8 · MEDIUM

The displayBlock function Template.php in Sensio Labs Twig before 1.20.0, when Sandbox mode is enabled, allows remote attackers to execute arbitrary code via the _self variable in a template.

Published Nov 6, 2015symfonyCWE-264EPSS 3.40%

Overview

CVE-2015-7809 is a medium-severity vulnerability affecting symfony twig. It was published on November 6, 2015 and has a CVSS 2.0 base score of 6.8 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The displayBlock function Template.php in Sensio Labs Twig before 1.20.0, when Sandbox mode is enabled, allows remote attackers to execute arbitrary code via the _self variable in a template.

Remediation

Check the references section for vendor advisories and patches from symfony. Update twig 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

VendorProductVersionsStatus
symfonytwig0Affected

References

Refopenwall.com/lists/oss-security/2015/08/21/3Refopenwall.com/lists/oss-security/2015/10/11/2Refsymfony.com/blog/security-release-twig-1-20-0Refwww.debian.org/security/2015/dsa-3343GitHubgithub.com/fabpot/Twig/commit/30be07759a3de2558da5224f127d052ecf492e8fGitHubgithub.com/twigphp/Twig/pull/1759Refopenwall.com/lists/oss-security/2015/08/21/3Refopenwall.com/lists/oss-security/2015/10/11/2Refsymfony.com/blog/security-release-twig-1-20-0Refwww.debian.org/security/2015/dsa-3343

How CyberStrike helps

Frequently asked questions

What is CVE-2015-7809?

CVE-2015-7809 is a medium-severity vulnerability affecting symfony twig. It was published on November 6, 2015 and has a CVSS 2.0 base score of 6.8 (MEDIUM).

How severe is CVE-2015-7809?

This vulnerability has a CVSS 2.0 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2015-7809?

Check the references section for vendor advisories and patches from symfony. Update twig 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-2015-7809?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2015-7809 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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