CVE-2020-36157
An issue was discovered in the Ultimate Member plugin before 2.1.12 for WordPress, aka Unauthenticated Privilege Escalation via User Roles.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.96%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in the Ultimate Member plugin before 2.1.12 for WordPress, aka Unauthenticated Privilege Escalation via User Roles. Due to the lack of filtering on the role parameter that could be supplied during the registration process, an attacker could supply the role parameter with a WordPress capability (or any custom Ultimate Member role) and effectively be granted those privileges.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.96% probability · 86th percentile
- CISA KEV
- Not listed
- Affected
- ultimatemember/ultimate member
- Source
- cve@mitre.org
References
- https://wordpress.org/plugins/ultimate-member/#developersRelease Notes, Third Party Advisory
- https://wpscan.com/vulnerability/33f059c5-58e5-44b9-bb27-793c3cedef3bExploit, 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/#developersRelease Notes, Third Party Advisory
- https://wpscan.com/vulnerability/33f059c5-58e5-44b9-bb27-793c3cedef3bExploit, 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.