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.
Published: 2026-05-04
Score: 9.9 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Mon, 04 May 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 04 May 2026 16:15:00 +0000

Type Values Removed Values Added
First Time appeared Webpros
Webpros comet Backup
Vendors & Products Webpros
Webpros comet Backup

Mon, 04 May 2026 07:45:00 +0000

Type Values Removed Values Added
Title Critical IDOR in Comet Backup Enables Tenant Admin Impersonation

Mon, 04 May 2026 06:45:00 +0000

Type Values Removed Values Added
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.
Weaknesses CWE-639
References
Metrics cvssV4_0

{'score': 9.9, 'vector': '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'}


Subscriptions

Webpros Comet Backup
cve-icon MITRE

Status: PUBLISHED

Assigner: hackerone

Published:

Updated: 2026-05-04T19:44:22.056Z

Reserved: 2026-03-04T15:00:09.266Z

Link: CVE-2026-29200

cve-icon Vulnrichment

Updated: 2026-05-04T19:44:10.306Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-05-04T07:16:00.100

Modified: 2026-05-06T19:05:56.337

Link: CVE-2026-29200

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-04T16:06:05Z

Weaknesses