Exceptions displayed in non-debug configurations in Symfony
CVE-2020-5274
4.6MEDIUM
What is CVE-2020-5274?
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
Affected Version(s)
symfony >= 4.0.0, < 4.4.5 < 4.0.0, 4.4.5
symfony >= 5.0.0, < 5.0.5 < 5.0.0, 5.0.5