Information Exposure Through Timing Discrepancy in wagtail - CVE-2020-11037

Vulnerability details

The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to observable timing discrepancies in password comparison in Wagtail privacy controls for password-protected pages and documents when handling shared-password access checks. A remote attacker can measure response times with high accuracy to disclose sensitive information.

Exploitation is understood to be feasible on a local network, but not on the public internet. Privacy restrictions based on individual users or groups are unaffected.

Affected software

How to mitigate CVE-2020-11037

External References

• https://github.com/wagtail/wagtail/security/advisories/GHSA-jjjr-3jcw-f8v6

Related Security Bulletins

• Information Exposure Through Timing Discrepancy in wagtail