CVE-2020-36155
highpriority · track · 43EPSS 0.101 · 96 %ileEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–10
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (10)
External citations — patches, advisories, analysis.
- https://nvd.nist.gov/vuln/detail/CVE-2020-36155cnnvd
- https://wordpress.org/plugins/ultimate-member/#developerscnnvd
- https://wpscan.com/vulnerability/cf13b0f8-5815-4d27-a276-5eff8985fc0bcnnvd
- https://www.wordfence.com/blog/2020/11/critical-privilege-escalation-vulnerabilities-affect-100k-sites-using-ultimate-member-plugin/cnnvd
- https://wordpress.org/plugins/ultimate-member/#developersenisa_euvd
- https://wpscan.com/vulnerability/cf13b0f8-5815-4d27-a276-5eff8985fc0benisa_euvd
- https://www.wordfence.com/blog/2020/11/critical-privilege-escalation-vulnerabilities-affect-100k-sites-using-ultimate-member-plugin/enisa_euvd
- https://wordpress.org/plugins/ultimate-member/#developersRelease NotesThird Party Advisorynvd
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