The wpo365-login plugin before v11.7 for WordPress allows use of a symmetric algorithm to decrypt a JWT token. This leads to authentication bypass.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26511
Reference (s):
- https://plugins.trac.wordpress.org/changeset/2388992/
- https://wordpress.org/plugins/wpo365-login/#developers
- https://wpvulndb.com/vulnerabilities/10418
- https://www.wpo365.com/change-log/