Vulnerability · Published Mar 11, 2026 · Assigned by Wordfence

CVE-2026-3903Modular Connector <= 2.5.1 - Cross-Site Request Forgery via postConfirmOauth

Medium 4.3

In plain English

A medium-severity cross-site request forgery in Modular DS: Monitor, update, and backup multiple websites from modulards. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.1%top 98.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
modulards	Modular DS: Monitor, update, and backup multiple websites	0 – through 2.5.1

Weakness: CWE-352 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

In plain English

Official description

Affected products (as reported)

References