CVE-2023-6296Public exploitNetwork attack vector

Victim-side script execution via unsanitized compare argument

Published Nov 26, 2023 · Updated Feb 13, 2025

Reflected XSS in osCommerce 4 allows remote attackers to execute JavaScript in a victim's browser via a crafted compare request. The /catalog/compare handler reflects the compare argument into its response without neutralizing HTML or script syntax. The attack requires no authentication, but a victim must open the crafted request before attacker-controlled script can alter page content.

CVSS severity4.3
Medium
EPSS probability0.80%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in osCommerce 4 allows remote attackers to execute JavaScript in a victim's browser via a crafted compare request. The /catalog/compare handler reflects the compare argument into its response without neutralizing HTML or script syntax. The attack requires no authentication, but a victim must open the crafted request before attacker-controlled script can alter page content.

The record

CVE
CVE-2023-6296
Published
Nov 26, 2023
Updated
Feb 13, 2025
Vendor
osCommerce
Product
osCommerce
Classifications
CWE-79, CAPEC-591, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 26, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 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=4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

osCommerce · osCommerceversion=4

Published CVSS scores

4.3VulDB CNACVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
5.0INCIBE-CERTAV:N/AC:L/Au:N/C:N/I:P/A:N
4.3VulDB CNACVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
6.1INCIBE-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.0VulDB CNAAV:N/AC:L/Au:N/C:N/I:P/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-591Reflected XSS
T1203Exploitation for Client Execution

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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