Auth bypass in Ultimatemember Ultimate Member
CVE-2020-6859
Multiple Insecure Direct Object Reference vulnerabilities in includes/core/class-files.php in the Ultimate Member plugin through 2.1.2 for WordPress allow remote attackers to change other users' profiles and cover photos via a modified user_id parameter. This is related to ajax_image_upload and ajax_resize_image.
Vulnerability class: IDOR (Insecure Direct Object Reference)
EPSS: 0.022 (80.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
Affected products
- Ultimatemember Ultimate_member
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (x_refsource_CONFIRM, Patch, Third Party Advisory)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2020-6859?
- CVE-2020-6859 is a medium-severity vulnerability in Ultimatemember Ultimate Member, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.3/10. Published 2020-01-13.
- How severe is CVE-2020-6859?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2020-6859 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.