What is CVE-2014-6604?

CVE-2014-6604 is a medium-severity vulnerability in Subscribe2 Project, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-03-29.

How severe is CVE-2014-6604?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2014-6604 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Subscribe2 Project

CVE-2014-6604

Cross-site scripting (XSS) vulnerability in class-s2-list-table.php in the Subscribe2 plugin before 10.16 for WordPress allows remote attackers to inject arbitrary web script or HTML via the ip parameter.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-03-29 · last modified 2026-06-17.

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: 0.012 (66.5th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 66.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: -0.000

Affected products

Subscribe2 Project

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

plugins.trac.wordpress.org/changeset/993564/subscribe2 (Third Party Advisory, Release Notes)
barmat.io/blog/2014/10/01/stored-xss-vulnerability-in-the-wordpress-plugin-subs… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2014-6604?: CVE-2014-6604 is a medium-severity vulnerability in Subscribe2 Project, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2018-03-29.
How severe is CVE-2014-6604?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2014-6604 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.