CVE-2023-53928: PHPFusion 9.10.30 contains a stored cross-site scripting vulnerability in the file manager that allows attacke

Routine

MEDIUM 5.4DOWNGRADE

CVE-2023-53928 is a medium-severity flaw (CVSS 5.4) affecting phpfusion. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PHPFusion 9.10.30 contains a stored cross-site scripting vulnerability in the file manager that allows attackers to upload malicious SVG files with embedded JavaScript. Attackers can upload SVG files with script tags that execute arbitrary JavaScript when viewed, potentially stealing user session information or performing client-side attacks.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.3% (top 82%)
CISA exploited list	No
Weakness	CWE-79
Published	2025-12-17
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: php-fusion

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

Am I affected?

Timeline

2025-12-17 23:15 UTCPublished CVE record published
2026-06-17 06:46 UTCUpdated Record last modified

php-fusion phpfusion DOWNGRADE

Affected: 9.10.30

Fixed in: no fixed release known

Safe to downgrade to: a release before 9.10.30

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 9.10.30 (Debian / Ubuntu)

apt-cache madison phpfusion sudo apt install phpfusion=<VERSION_BEFORE_9.10.30> sudo apt-mark hold phpfusion

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list phpfusion sudo dnf downgrade phpfusion-<VERSION_BEFORE_9.10.30> sudo dnf versionlock add phpfusion

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-2023-53928?

phpfusion: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-53928 being exploited?

CVE-2023-53928 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-2023-53928 affect?

CVE-2023-53928 affects phpfusion. Severity is medium (CVSS 5.4). PHPFusion 9.10.30 contains a stored cross-site scripting vulnerability in the file manager that allows attackers to upload malicious SVG files with embedded JavaScript. Attackers can upload SVG files with script tags that execute arbitrary

How urgent is CVE-2023-53928?

Priority 28/100. Public exploit reference

Software pages

PHP vulnerabilities

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References

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