Modular DS <= 2.5.1 - Unauthenticated Privilege Escalation

2026-01-14 00:00

Teemu Saarentaus

Strategic Overview

Status

Patched in 2.5.2

Affected PluginModular DS: Monitor, update, and backup multiple websites

Affected Version<= 2.5.1

CVSS9.8Critical

CVECVE-2026-23550

View all Modular DS: Monitor, update, and backup multiple websites vulnerabilities

Vulnerability Overview

The Modular DS: Monitor, update, and backup multiple websites plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 2.5.1. This is due to a broken oAuth implementation. This makes it possible for unauthenticated attackers to log in as an administrator.

Technical Analysis

REMEDIATION: Update to version 2.5.2, or a newer patched version --- IDENTIFIER: CWE-269 (Improper Privilege Management) The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

External References

https://www.cve.org/CVERecord?id=CVE-2026-23550 https://www.wordfence.com/threat-intel/vulnerabilities/id/22dd9fbb-77d2-48cd-91a5-eba39ef9d2c1

CVSS Vector

9.8

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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