CVE-2026-3903

MEDIUM

Modular DS WordPress Plugin <2.5.1 - CSRF

Title source: llm

Description

The Modular DS: Monitor, update, and backup multiple websites plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.5.1. This is due to missing nonce validation on the postConfirmOauth() function. This makes it possible for unauthenticated attackers to disconnect the plugin's OAuth/SSO connection via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

References (2)

[Product] https://plugins.trac.wordpress.org/changeset/3441222/

[Third Party Advisory] https://www.wordfence.com/threat-intel/vulnerabilities/id/913a94ad-f425-4d24-9e23-7074ecfed8ad?source=cve

Scores

CVSS v3 4.3

EPSS 0.0001

EPSS Percentile 3.3%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-352

Status published

Products (1)

modulards/Modular DS: Monitor, update, and backup multiple websites < 2.5.1

Published Mar 11, 2026

Tracked Since Mar 11, 2026