CVE-2025-40674Network attack vector

Browser script execution via reflected parameter names

Published Jun 17, 2025 · Updated Jun 17, 2025

Reflected XSS in osCommerce 4 allows remote attackers to execute JavaScript in a victim's browser through a crafted storefront URL. The affected about-page route inserts arbitrary request-parameter names into generated HTML without sufficient neutralization. Opening the attacker-supplied URL triggers execution in the victim's browser context, exposing session data or enabling actions under the victim's account.

CVSS severity5.1
Medium
EPSS probability0.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Reflected XSS in osCommerce 4 allows remote attackers to execute JavaScript in a victim's browser through a crafted storefront URL. The affected about-page route inserts arbitrary request-parameter names into generated HTML without sufficient neutralization. Opening the attacker-supplied URL triggers execution in the victim's browser context, exposing session data or enabling actions under the victim's account.

The record

CVE
CVE-2025-40674
Published
Jun 17, 2025
Updated
Jun 17, 2025
Vendor
osCommerce
Product
osCommerce
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

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

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=v4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

osCommerce · osCommerceversion=v4

Published CVSS scores

5.1INCIBE-CERTCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA: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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.001Malicious Link

Public exploit references

No public exploit references are available in this record.

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo