CVE-2023-53928Public exploitNetwork attack vectorHinoki check available

Victim-browser script execution via SVG upload

Published Dec 17, 2025 · Updated Dec 17, 2025

Stored cross-site scripting in PHP Fusion Inc PHPFusion 9.10.30 allows remote attackers to execute JavaScript via uploaded SVG files. The file manager accepts SVG content containing script elements and serves the stored file so a browser interprets the embedded code. Execution requires a user to view the uploaded SVG; the script runs in the site's origin and can access session data or act through the victim's browser.

CVSS severity5.1
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Stored cross-site scripting in PHP Fusion Inc PHPFusion 9.10.30 allows remote attackers to execute JavaScript via uploaded SVG files. The file manager accepts SVG content containing script elements and serves the stored file so a browser interprets the embedded code. Execution requires a user to view the uploaded SVG; the script runs in the site's origin and can access session data or act through the victim's browser.

The record

CVE
CVE-2023-53928
Published
Dec 17, 2025
Updated
Dec 17, 2025
Vendor
PHP Fusion Inc
Product
PHPFusion
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. Dec 17, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 17, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=9.10.30

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

PHP Fusion Inc · PHPFusionversion=9.10.30

Published CVSS scores

5.1VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
5.4VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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