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CVE-2020-5274

4.6 · MEDIUM

In Symfony before versions 5.0.5 and 4.4.5, some properties of the Exception were not properly escaped when the `ErrorHandler` rendered it stacktrace.

Published Mar 30, 2020CWE-209EPSS 1.20%

Overview

CVE-2020-5274 is a medium-severity vulnerability. It was published on March 30, 2020 and has a CVSS 3.1 base score of 4.6 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.6, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

In Symfony before versions 5.0.5 and 4.4.5, some properties of the Exception were not properly escaped when the `ErrorHandler` rendered it stacktrace. In addition, the stacktrace were displayed even in a non-debug configuration. The ErrorHandler now escape alls properties of the exception, and the stacktrace is only display in debug configuration. This issue is patched in symfony/http-foundation versions 4.4.5 and 5.0.5

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

References

GitHubgithub.com/symfony/symfony/commit/629d21b800a15dc649fb0ae9ed7cd9211e7e45dbGitHubgithub.com/symfony/symfony/commit/cf80224589ac05402d4f72f5ddf80900ec94d5adGitHubgithub.com/symfony/symfony/security/advisories/GHSA-m884-279h-32v2GitHubgithub.com/symfony/symfony/commit/629d21b800a15dc649fb0ae9ed7cd9211e7e45dbGitHubgithub.com/symfony/symfony/commit/cf80224589ac05402d4f72f5ddf80900ec94d5adGitHubgithub.com/symfony/symfony/security/advisories/GHSA-m884-279h-32v2

How CyberStrike helps

Frequently asked questions

What is CVE-2020-5274?

CVE-2020-5274 is a medium-severity vulnerability. It was published on March 30, 2020 and has a CVSS 3.1 base score of 4.6 (MEDIUM).

How severe is CVE-2020-5274?

This vulnerability has a CVSS 3.1 base score of 4.6, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2020-5274?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2020-5274?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-5274 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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