XSS in Wp.insider Simple Membership Custom Messages

CVE-2025-24660

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in wp.insider Simple Membership Custom Messages simple-membership-custom-messages allows Reflected XSS.This issue affects Simple Membership Custom Messages: from n/a through <= 2.4.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.003 (21.9th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 21.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-24660: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-24660?
CVE-2025-24660 is a high-severity vulnerability in Wp.insider Simple Membership Custom Messages, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2025-02-03.
How severe is CVE-2025-24660?
High severity. CVSS v3 base score is 7.1 out of 10.
Is CVE-2025-24660 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.