How severe is CVE-2026-44239?

CVE-2026-44239 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-44239 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-44239?

CVE-2026-44239 affects Sangoma Freepbx. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-44239?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-44239 have an EU (EUVD) identifier?

Yes. CVE-2026-44239 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33297.

When was CVE-2026-44239 published?

CVE-2026-44239 was published on 2026-05-29 and last updated on 2026-06-17.

CVE-2026-44239

CVE-2026-44239 is a high-severity vulnerability in Sangoma Freepbx with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-98.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 7.6
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-33297
Weakness: CWE-98
Affected product: Sangoma Freepbx
Published: 2026-05-29
Last modified: 2026-06-17

Description

FreePBX is an open source IP PBX. Prior to 16.0.22 and 17.0.5, the Dashboard module's getcontent AJAX handler includes PHP files based on user-supplied input without path sanitization. The $_REQUEST['rawname'] parameter is concatenated into an include() call with a .class.php suffix, allowing path traversal via ../ sequences to include arbitrary .class.php files from the filesystem. The included file's PHP code executes before the subsequent class instantiation error occurs. This vulnerability is fixed in 16.0.22 and 17.0.5.

Frequently asked questions

What is CVE-2026-44239?: FreePBX is an open source IP PBX. Prior to 16.0.22 and 17.0.5, the Dashboard module's getcontent AJAX handler includes PHP files based on user-supplied input without path sanitization. The $_REQUEST['rawname'] parameter is concatenated into an include() call with a .class.php suffix, allowing path traversal via ../ sequences to include arbitrary .class.php files from the filesystem. The included file's PHP code executes before the subsequent class instantiation error occurs. This vulnerability is fixed in 16.0.22 and 17.0.5.
How severe is CVE-2026-44239?: CVE-2026-44239 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-44239 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-44239?: CVE-2026-44239 affects Sangoma Freepbx. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-44239?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-44239 have an EU (EUVD) identifier?: Yes. CVE-2026-44239 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33297.
When was CVE-2026-44239 published?: CVE-2026-44239 was published on 2026-05-29 and last updated on 2026-06-17.

References

https://github.com/FreePBX/security-reporting/security/advisories/GHSA-hw7v-v2jp-wc4v

Affected products (1)

cpe:2.3:a:sangoma:freepbx:*:*:*:*:*:*:*:*

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