CVE-2026-3903
Medium
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.
SeverityMedium
CVSS4.3
Exploit probability—
ProductModular DS: Monitor, update, and backup multiple websites
PublishedMar 11, 2026
First seenMar 11, 2026
Weakness typeCWE-352Cross-site request forgery (CSRF)
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| modulards Modular DS: Monitor, update, and backup multiple websites | v ≤ 2.5.1 | — |
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