FreePBX 17.0 Ajax Ajax.class.php cross-site request forgery

Summaryinfo

A vulnerability classified as problematic has been found in FreePBX 17.0. The affected element is an unknown function of the file amp_conf/htdocs/admin/libraries/BMO/Ajax.class.php of the component Ajax. Performing a manipulation results in cross-site request forgery. This vulnerability was named CVE-2026-72578. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in FreePBX 17.0. It has been classified as problematic. This affects some unknown processing of the file amp_conf/htdocs/admin/libraries/BMO/Ajax.class.php of the component Ajax. The manipulation with an unknown input leads to a cross-site request forgery vulnerability. CWE is classifying the issue as CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. This is going to have an impact on integrity. The summary by CVE is:

A cross-site request forgery (CSRF) vulnerability in FreePBX Framework 17.0 allows an unauthenticated remote attacker to perform administrative actions on behalf of an authenticated administrator. The /admin/ajax.php dispatcher in amp_conf/htdocs/admin/libraries/BMO/Ajax.class.php does not implement CSRF tokens; its only protection is a Referer header check that is bypassed when the request is sent without a Referer header or from a same-site context, enabling attackers to trigger admin operations by luring an administrator to a malicious page.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-72578 since 08/10/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

By approaching the search of inurl:amp_conf/htdocs/admin/libraries/BMO/Ajax.class.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.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

• FreePBX

Version

• 17.0

License

• open-source

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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