Digits: WordPress Mobile Number Signup and Login <= 9.1.0.5 - Authenticated (Subscriber+) Privilege Escalation via 'digits_reg_userrole' Parameter
Affected versions: *-9.1.0.5
Vulnerability type: CWE-269 Improper Privilege Management
Affected software, patched versions and attribution
The Digits: WordPress Mobile Number Signup and Login plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 9.1.0.5. This is due to missing authorization and role validation in the `dig_update_wpwc_custom_fields()` function. This makes it possible for authenticated attackers, with Subscriber-level access and above, to escalate their privileges to Administrator by submitting a forged `digits_reg_userrole` value during profile update, granted the site administrator has configured the built-in DIGITS User Role field.
Digits: WordPress Mobile Number Signup and Login
Affected versions: *-9.1.0.5
Patched versions: 9.1.0.6
Researcher credit: h0xilo
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- Published
- July 15, 2026
- CVSS
- 8.8