CVE-2026-29200

CRITICAL

WebPros Comet Backup 20.11.0 to 26.1.1 and 26.2.1 - Insecure Direct Object Reference

Title source: manual

Description

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.

References (1)

Core 1

Core References

https://support.cometbackup.com/hc/en-us/articles/40090945484823--CVE-2026-29200-%D0%A1ritical-IDOR-vulnerability-in-Comet-Backup

Scores

CVSS v4 9.9

EPSS 0.0030

EPSS Percentile 21.1%

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact total

Details

CWE

CWE-639

Status published

Products (2)

WebPros/Comet Backup 20.11.0 - 26.1.2

WebPros/Comet Backup 26.2.0 - 26.2.2

Published May 04, 2026

Tracked Since May 04, 2026