XSS in Ultimatemember Ultimate Member
CVE-2018-17866
Multiple cross-site scripting (XSS) vulnerabilities in includes/core/um-actions-login.php in the "Ultimate Member - User Profile & Membership" plugin before 2.0.28 for WordPress allow remote attackers to inject arbitrary web script or HTML via the "Primary button Text" or "Second button text" field.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.016 (75.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 75.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- serhack.me/articles/ultimate-member-xss-security-issue (Exploit, Third Party Advisory)
- wordpress.org/plugins/ultimate-member/ (Product, Third Party Advisory, Release Notes)
- wpvulndb.com/vulnerabilities/9615
Frequently asked questions
- What is CVE-2018-17866?
- CVE-2018-17866 is a medium-severity vulnerability in Ultimatemember Ultimate Member, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-10-09.
- How severe is CVE-2018-17866?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2018-17866 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.