CVE-2023-22296: Reflected cross-site scripting vulnerability in MAHO-PBX NetDevancer series MAHO-PBX NetDevancer Lite/Uni/Pro/

Q: How do I fix CVE-2023-22296?

maho-pbx netdevancer firmware: upgrade to 1.11.00; maho-pbx netdevancer vsg firmware: upgrade to 1.11.00; maho-pbx netdevancer mobilegate firmware: upgrade to 1.11.00. Exact commands for each OS are on this page.

Q: Is CVE-2023-22296 being exploited?

CVE-2023-22296 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-22296 affect?

CVE-2023-22296 affects maho-pbx netdevancer firmware, maho-pbx netdevancer vsg firmware, maho-pbx netdevancer mobilegate firmware. Severity is medium (CVSS 6.1). Reflected cross-site scripting vulnerability in MAHO-PBX NetDevancer series MAHO-PBX NetDevancer Lite/Uni/Pro/Cloud prior to Ver.1.11.00, MAHO-PBX NetDevancer VSG Lite/Uni prior to Ver.1.11.00, and MAHO-PBX NetDevancer MobileGate Home/Offic

Q: How urgent is CVE-2023-22296?

Priority 32/100. No elevated risk signals yet.

Routine

MEDIUM 6.1UPGRADEUPGRADEUPGRADE

CVE-2023-22296 is a medium-severity flaw (CVSS 6.1) affecting maho-pbx netdevancer firmware, maho-pbx netdevancer vsg firmware, maho-pbx netdevancer mobilegate firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Reflected cross-site scripting vulnerability in MAHO-PBX NetDevancer series MAHO-PBX NetDevancer Lite/Uni/Pro/Cloud prior to Ver.1.11.00, MAHO-PBX NetDevancer VSG Lite/Uni prior to Ver.1.11.00, and MAHO-PBX NetDevancer MobileGate Home/Office prior to Ver.1.11.00 allows a remote unauthenticated attacker to inject an arbitrary script.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.5% (top 56%)
CISA exploited list	No
Weakness	CWE-79
Published	2023-01-17
Last modified	2026-06-17

Publisher (CNA): JPCERT/CC · Vendor: ate-mahoroba

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-01-17 10:15 UTCPublished CVE record published
2026-06-17 05:34 UTCUpdated Record last modified

ate-mahoroba maho-pbx netdevancer firmware UPGRADE

Affected: < 1.11.00

Fixed in: 1.11.00

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

ate-mahoroba maho-pbx netdevancer vsg firmware UPGRADE

Affected: < 1.11.00

Fixed in: 1.11.00

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

ate-mahoroba maho-pbx netdevancer mobilegate firmware UPGRADE

Affected: < 1.11.00

Fixed in: 1.11.00

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2023-22296?

maho-pbx netdevancer firmware: upgrade to 1.11.00; maho-pbx netdevancer vsg firmware: upgrade to 1.11.00; maho-pbx netdevancer mobilegate firmware: upgrade to 1.11.00. Exact commands for each OS are on this page.

Is CVE-2023-22296 being exploited?

CVE-2023-22296 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-2023-22296 affect?

CVE-2023-22296 affects maho-pbx netdevancer firmware, maho-pbx netdevancer vsg firmware, maho-pbx netdevancer mobilegate firmware. Severity is medium (CVSS 6.1). Reflected cross-site scripting vulnerability in MAHO-PBX NetDevancer series MAHO-PBX NetDevancer Lite/Uni/Pro/Cloud prior to Ver.1.11.00, MAHO-PBX NetDevancer VSG Lite/Uni prior to Ver.1.11.00, and MAHO-PBX NetDevancer MobileGate Home/Offic

How urgent is CVE-2023-22296?

Priority 32/100. No elevated risk signals yet.

Related CVEs

CVE-2023-22286 HIGH 8.1 UPGRADE UPGRADE Cross-site request forgery (CSRF) vulnerability in MAHO-PBX NetDevancer Lite/Uni/Pro/Cloud prior to Ver.1.11.0
CVE-2023-22280 HIGH 7.2 UPGRADE UPGRADE MAHO-PBX NetDevancer Lite/Uni/Pro/Cloud prior to Ver.1.11.00, MAHO-PBX NetDevancer VSG Lite/Uni prior to Ver.1
CVE-2023-22279 CRITICAL 9.8 UPGRADE UPGRADE MAHO-PBX NetDevancer Lite/Uni/Pro/Cloud prior to Ver.1.11.00, MAHO-PBX NetDevancer VSG Lite/Uni prior to Ver.1

References

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