Impact

A CSP (Content Security Policy) nonce reuse vulnerability was discovered could allow XSS attacks to bypass CSP protection for anonymous (i.e. unauthenticated) users. There are no known XSS vectors at the moment, but should one be discovered, this vulnerability would allow the XSS attack to bypass CSP and execute successfully. This vulnerability isn't applicable to logged-in users.

Patches

The vulnerability is patched in the latest tests-passed and beta branches. The stable branch doesn't have this vulnerability .

Workarounds

A workaround to prevent the vulnerability is to disable Google Tag Manager, i.e., unset the gtm container id setting.