CVE-2025-24660Network attack vector

Administrator-session script execution via unsanitized tab parameter

Published Feb 3, 2025 · Updated Apr 28, 2026

Reflected XSS in wp.insider Simple Membership Custom Messages 2.4 and earlier allows remote attackers to run script via a crafted settings URL. The settings page reflects the unsanitized tab query parameter into generated HTML, allowing browser interpretation as active content. Exploitation requires a logged-in administrator to open the crafted link, and the injected script executes within that administrator's site session.

CVSS severity7.1
High
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Reflected XSS in wp.insider Simple Membership Custom Messages 2.4 and earlier allows remote attackers to run script via a crafted settings URL. The settings page reflects the unsanitized tab query parameter into generated HTML, allowing browser interpretation as active content. Exploitation requires a logged-in administrator to open the crafted link, and the injected script executes within that administrator's site session.

The record

CVE
CVE-2025-24660
Published
Feb 3, 2025
Updated
Apr 28, 2026
Vendor
WP Affiliate Manager
Product
Simple Membership Custom Messages
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 3, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=2.4 changes=[{"at":"2.5","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WP Affiliate Manager · Simple Membership Custom Messagesversion=0 <=2.4 changes=[{"at":"2.5","status":"unaffected"}]

Published CVSS scores

7.1PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo