What is the CVSS score of CVE-2019-11871?

CVE-2019-11871 has a CVSS 3.0 base score of 5.4 (Medium). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.9%.

Custom Field Suite CVE-2019-11871

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2019-05-10 cve@mitre.org

XSS WordPress Custom Field Suite

5.4

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

5.4 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

CVE Published

May 10, 2019 - 03:29 nvd

MEDIUM 5.4

DescriptionNVD

The Custom Field Suite plugin before 2.5.15 for WordPress has XSS for editors or admins.

AnalysisAI

The Custom Field Suite plugin before 2.5.15 for WordPress has XSS for editors or admins. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. The Custom Field Suite plugin before 2.5.15 for WordPress has XSS for editors or admins. Affected products include: Custom Field Suite Project Custom Field Suite. Version information: before 2.5.15.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.