CVE-2025-23806 HIGH

CVE-2025-23806: WordPress Ultimate Subscribe Plugin <=1.3 - CSRF to Reflected Cross Site Scripting (XSS) vulnerability

Vendor Themefarmer

Product Ultimate Subscribe

Weakness CWE-352 · CSRF

Published January 22, 2025

Last update April 29, 2026

View on NVD All CVEs

CVSS base score

7.1/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction Required

Confidentiality Low

Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Cross-Site Request Forgery (CSRF) vulnerability in ThemeFarmer Ultimate Subscribe ultimate-subscribe allows Reflected XSS.This issue affects Ultimate Subscribe: from n/a through <= 1.3.

Explanation of Vulnerability in Simple Terms

02Summary

Ultimate Subscribe versions 1.3 and earlier contain a cross-site request forgery (CSRF) vulnerability. An attacker can craft a malicious webpage that, when visited by a logged-in site administrator, performs unwanted actions on the site without their knowledge. The vulnerability requires user interaction—the admin must visit the attacker's page—but can affect confidentiality, integrity, and availability of the site.

What an attacker can do

03Attacker Capabilities

Perform unwanted actions on the site by tricking an admin into visiting a malicious webpage.

Potential impact on your site

04Site Impact

An attacker can modify site settings, user data, or content by exploiting an admin's browser session.

Conditions required to exploit

05Prerequisites

Site admin must visit an attacker-controlled webpage while logged into the site.

Key dates

06Disclosure timeline

January 22, 2025 CVE published

April 29, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2025-23806 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/352.html AskarLabs — CWE-352 write-up Cross-Site Request Forgery

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