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CVE-2015-9304

18
FAUCET Score

CVE-2015-9304 describes a Cross-Site Scripting (XSS) vulnerability in the ultimate-member plugin for WordPress, affecting versions prior to 1.3.18. This medium-severity flaw (CVSS 6.1) allows unauthenticated attackers to inject malicious scripts via text input, requiring user interaction but potentially leading to information disclosure or defacement. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.3.18CPE matchmatch criteria
cpe:2.3:a:ultimatemember:ultimate_member:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

CVSS:3.1/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
3.1

Exploit Intelligence

EPSS Score
1.05%
Probability of exploitation in next 30 days
EPSS Percentile
60.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0105 is in the 73rd percentile among its peer group of 26,234 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

wordpress.org / plugins/ultimate-member
Release Notes
wpvulndb.com / vulnerabilities/9764
Third Party Advisory