CVE-2023-43703Public exploitNetwork attack vector

Browser script execution via unescaped product name

Published Sep 30, 2023 · Updated Sep 23, 2024

Reflected XSS in osCommerce 4.12.56860 allows remote authenticated users to execute scripts in another user's browser. The /admin/editor/show-basket endpoint reflects the product_info[][name] value into its response without neutralizing executable markup. Low-privileged access and victim interaction are required; exploitation can read or alter data available to the victim's browser session.

CVSS severity5.4
Medium
EPSS probability0.43%
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 4.12.56860 allows remote authenticated users to execute scripts in another user's browser. The /admin/editor/show-basket endpoint reflects the product_info[][name] value into its response without neutralizing executable markup. Low-privileged access and victim interaction are required; exploitation can read or alter data available to the victim's browser session.

The record

CVE
CVE-2023-43703
Published
Sep 30, 2023
Updated
Sep 23, 2024
Vendor
osCommerce
Product
osCommerce
Classifications
CWE-79, CAPEC-591, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 30, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 23, 2024Record 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=4.12.56860

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

osCommerce · osCommerceversion=4.12.56860

Published CVSS scores

5.4Fluid AttacksCVSS:3.1/AV:N/AC:L/PR:L/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.

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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
Privilegesauthenticated
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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