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Missing authorization in Combodo iTop LinkSetController lets users bypass grants

Priority LOW 24CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
Low · Low · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

Combodo iTop versions 3.1.0 through 3.3.0 contain a missing authorization flaw (CWE-862) in LinkSetController.php. An authenticated console user can bypass profile grants by supplying arbitrary class and key parameters to the linkset routes. An attacker with low privileges over the network can delete objects, clear external keys, and read object attributes without permission.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

Combodo iTop 3.1.0 through 3.3.0 contains a missing authorization vulnerability in LinkSetController.php that allows authenticated console users to bypass profile grants by supplying arbitrary class and key parameters. Attackers can invoke the linkset delete, detach and get-remote-object routes to delete objects, clear external keys, and read object attributes without permission.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00264 18th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
CombodoiTop3.1.0 – 3.3.0—No fix listedCNA
  • iTop VendorCombodo Affected 3.1.0 – 3.3.0 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:combodo:itop:*:*:*:*:*:*:*:*——Combodo
  • cpe:2.3:a:combodo:itop:*:*:*:*:*:*:*:* Versions — — ·Combodo

Remediation

The sources list no fixed version for Combodo iTop.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

  1. 2026-10-11 Threatist record created from CVE-2026-108717
  2. 2026-10-11 Alias added: GHSA-p2cr-76v5-5835
  3. 2026-10-13 CISA SSVC decision points changed

References

  • TI-2022-08681 Stored Cross-site Scripting in Combodo iTop CVSS 3.1HIGH 8.7
  • TI-2022-08593 Code Injection in Combodo iTop CVSS 3.1HIGH 8.8
  • TI-2021-18080 Possible Cross-Site Request Forgery in Combodo iTop CVSS 3.1HIGH 8.1
  • TI-2026-21869 Combodo iTop: User enumeration via password reset CVSS 3.1HIGH 7.5
  • TI-2023-25672 Cross Site Scripting vulnerability in Combodo iTop v.3.1.0-2-11973 allows a local… CVSS 3.1MEDIUM 6.1
  • TI-2022-18593 Authenticated users of Combodo iTop can take over any account CVSS 3.1CRITICAL 9.6
See all 103 →

Sources