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CVE-2026-29200

Quick assessment

Affected
WebPros Comet Backup
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WebPros Comet Backup是瑞士WebPros公司的一款数据备份与恢复平台。 WebPros Comet Backup 20.11.0版本至26.1.1版本和26.2.1版本存在安全漏洞，该漏洞源于不安全的直接对象引用，允许租户管理员通过易受攻击的API调用冒充同一服务器上其他租户的任何最终用户账户。

AI Predicted 9.1 Difficulty: Easy EPSS 0.46% · P38

Affected Version Matrix 2

VendorProduct Version RangeStatus
WebPros Comet Backup 20.11.0< 26.1.2 affected
26.2.0< 26.2.2 affected
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I. Basic Information for CVE-2026-29200

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
WebPros Comet Backup 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WebPros Comet Backup是瑞士WebPros公司的一款数据备份与恢复平台。 WebPros Comet Backup 20.11.0版本至26.1.1版本和26.2.1版本存在安全漏洞，该漏洞源于不安全的直接对象引用，允许租户管理员通过易受攻击的API调用冒充同一服务器上其他租户的任何最终用户账户。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
WebPros Comet Backup 20.11.0 ~ 26.1.2 -

II. Public POCs for CVE-2026-29200

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III. Intelligence Information for CVE-2026-29200

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IV. Related Vulnerabilities

Same product: Comet Backup
Same vendor: WebPros
Same weakness: CWE-639

V. Comments for CVE-2026-29200

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