Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2018-17866

21
FAUCET Score

CVE-2018-17866 describes multiple cross-site scripting (XSS) vulnerabilities in the Ultimate Member - User Profile & Membership plugin for WordPress, specifically affecting versions prior to 2.0.28. Attackers can inject malicious web script or HTML through the "Primary button Text" or "Second button text" fields. Rated as Medium severity (CVSS 6.1), it requires user interaction but can lead to limited impact on confidentiality and integrity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.0.28CPE matchmatch criteria
cpe:2.3:a:ultimatemember:ultimate_member:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.0

6.1MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.65%
Probability of exploitation in next 30 days
EPSS Percentile
74.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0165 is in the 86th percentile among its peer group of 26,236 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

serhack.me / articles/ultimate-member-xss-security-issue
ExploitThird Party Advisory
wordpress.org / plugins/ultimate-member
ProductRelease NotesThird Party Advisory
wpvulndb.com / vulnerabilities/9615