CVE-2026-29200NVD

Vulnerability Summary

A critical IDOR vulnerability has been discovered in Comet Backup affecting all versions from 20.11.0 to 26.1.1 and 26.2.1. The vulnerability allows a tenant administrator to impersonate any end-user account of other tenants on the same server via a vulnerable API call.

Severity Level

UNKNOWN

Published Date

May 4, 2026

Last Modified

May 4, 2026

Exploitation Status

No confirmed exploitation yet

EPSS Score (30-Day)

0.06%Probability

Root Weakness (CWE)

CWE-639: Unknown/Unlisted Weakness ↗

Refer to the official MITRE database for detailed architectural specifications regarding this weakness.

CVSS v4.0 Base Metrics — Score 9.9 (CRITICAL)

Attack VectorNetwork

Attack ComplexityLow

Attack RequirementsNone

Privileges RequiredNone

User InteractionNone

Confidentiality (Vulnerable System)High

Integrity (Vulnerable System)High

Availability (Vulnerable System)None

Confidentiality (Subsequent System)None

Integrity (Subsequent System)None

Availability (Subsequent System)High

Affected & Patched Versions

Affected Versions

WebPros Comet Backup >= 20.11.0 and < 26.1.2
WebPros Comet Backup >= 26.2.0 and < 26.2.2

Patched Versions

WebPros Comet Backup 26.1.2
WebPros Comet Backup 26.2.2

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