CVE-2026-44239: FreePBX is an open source IP PBX

Routine

HIGH 8.8UPGRADE

CVE-2026-44239 is a high-severity flaw (CVSS 8.8) affecting freepbx. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 clas

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 81%)
CISA exploited list	No
Weakness	CWE-98
Published	2026-05-29
Last modified	2026-07-21

Publisher (CNA): GitHub, Inc. · Vendor: sangoma

Last updated 2026-07-21 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-29 14:16 UTCPublished CVE record published
2026-07-21 12:10 UTCUpdated Record last modified

sangoma freepbx UPGRADE

Affected: < 16.0.22 · >= 17.0 and < 17.0.5

Fixed in: 16.0.22, 17.0.5

Safe to downgrade to: a release before 17.0

1. Check installed version

apt-cache policy freepbx || rpm -q freepbx || freepbx --version

2. UPGRADE to 16.0.22 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade freepbx

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade freepbx

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 17.0 (Debian / Ubuntu)

apt-cache madison freepbx sudo apt install freepbx=<VERSION_BEFORE_17.0> sudo apt-mark hold freepbx

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list freepbx sudo dnf downgrade freepbx-<VERSION_BEFORE_17.0> sudo dnf versionlock add freepbx

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-44239?

freepbx: upgrade to 16.0.22, 17.0.5. Exact commands for each OS are on this page.

Is CVE-2026-44239 being exploited?

CVE-2026-44239 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-44239 affect?

CVE-2026-44239 affects freepbx. Severity is high (CVSS 8.8). 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

How urgent is CVE-2026-44239?

Priority 36/100. High severity

Software pages

PHP vulnerabilities

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References

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