CVEvulnerability
CVE-2020-36155
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2021-01-04
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 10.0 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-269
Description
An issue was discovered in the Ultimate Member plugin before 2.1.12 for WordPress, aka Unauthenticated Privilege Escalation via User Meta. An attacker could supply an array parameter for sensitive metadata, such as the wp_capabilities user meta that defines a user's role. During the registration process, submitted registration details were passed to the update_profile function, and any metadata was accepted, e.g., wp_capabilities[administrator] for Administrator access.
Affected configurations
• ultimatemember ultimate member (< 2.1.12)
Related
Weakness · CWE (1)
- CWE-269 Improper Privilege Management weakness
References
- https://wordpress.org/plugins/ultimate-member/#developers Release Notes, Third Party Advisory
- https://wpscan.com/vulnerability/cf13b0f8-5815-4d27-a276-5eff8985fc0b Exploit, Third Party Advisory
- https://www.wordfence.com/blog/2020/11/critical-privilege-escalation-vulnerabilities-affect-100k-sites-using-ultimate-member-plugin/ Exploit, Third Party Advisory
- https://wordpress.org/plugins/ultimate-member/#developers Release Notes, Third Party Advisory
- https://wpscan.com/vulnerability/cf13b0f8-5815-4d27-a276-5eff8985fc0b Exploit, Third Party Advisory
- https://www.wordfence.com/blog/2020/11/critical-privilege-escalation-vulnerabilities-affect-100k-sites-using-ultimate-member-plugin/ Exploit, Third Party Advisory