Combodo iTop up to 3.3.0 LinkSet Controller LinkSetController.php class/key improper authorization

Summaryinfo

A vulnerability classified as critical was found in Combodo iTop up to 3.3.0. This impacts an unknown function of the file LinkSetController.php of the component LinkSet Controller. Such manipulation of the argument class/key leads to improper authorization. This vulnerability is uniquely identified as CVE-2026-108717. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Combodo iTop up to 3.3.0. Affected by this issue is an unknown function of the file LinkSetController.php of the component LinkSet Controller. The manipulation of the argument class/key with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at hackmd.io. This vulnerability is handled as CVE-2026-108717 since 10/11/2026. The exploitation is known to be easy. The attack may be launched remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 10/11/2026). The MITRE ATT&CK project declares the attack technique as T1548.002.

By approaching the search of inurl:LinkSetController.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• Combodo

Name

• iTop

Version

• 3.0
• 3.1
• 3.2
• 3.3.0

License

• open-source

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Once again VulDB remains the best source for vulnerability data.

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