CVE-2020-5274 Information

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

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Reference

https://github.com/symfony/symfony/commit/629d21b800a15dc649fb0ae9ed7cd9211e7e45db https://github.com/symfony/symfony/commit/cf80224589ac05402d4f72f5ddf80900ec94d5ad https://github.com/symfony/symfony/security/advisories/GHSA-m884-279h-32v2

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

5.4