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TI-2026-23317 Aliases CVE-2026-29200GHSA-2fxc-8v96-j5f3

Authorization bypass in WebPros Comet Backup

Priority MEDIUM 49CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00297 22nd percentileScored 2026-11-07
Fix Fixed Comet Backup (WebPros): 26.1.2, 26.2.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
WebProsComet Backup20.11.0 to before 26.1.2; 26.2.0 to before 26.2.226.1.2, 26.2.2Patch availableCNA
  • Comet Backup VendorWebPros Affected 20.11.0 to before 26.1.2; 26.2.0 to before 26.2.2 Fixed in 26.1.2, 26.2.2 Patch available CNA

Remediation

  • Fix · CNA Comet Backup (WebPros) Fixed in 26.1.2, 26.2.2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-29200
  2. 2026-10-03 Alias added: GHSA-2fxc-8v96-j5f3

References

Other 1

  • TI-2026-30342 WebPros cPanel and WHM Authentication Bypass via Login Flow KEVCVSS 4.0CRITICAL 9.3
  • TI-2026-46792 Eval injection in cPanel 11.138.0.0 and earlier allows remote authenticated users to execute arbitrary code as root. CVSS 4.0HIGH 8.7
  • TI-2025-40383 Plesk Obsidian versions 8.0.1 through 18.0.73 are vulnerable to a Denial of Service (DoS)… CVSS 3.1HIGH 7.5
  • TI-2026-23322 Incorrect privileges management and insufficient path filtering allow to read arbitrary… CVSS 3.1HIGH 8.6
  • TI-2026-47685 Deserialization of untrusted data in WebPros WHMCS CVSS 4.0CRITICAL 9.3
  • TI-2026-47687 An insecure Apache configuration in ConfigServer Security & Firewall maps /usr/bin as CGI… CVSS 4.0CRITICAL 9.2
See all 50 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences