CVE-2023-43729Public exploitNetwork attack vector

Script execution via unneutralized cross-sell type name

Published Sep 30, 2023 · Updated Sep 20, 2024

Cross-site scripting in osCommerce 4.12.56860 allows remote authenticated users to execute scripts in another user's browser. The /admin/xsell-types/save endpoint stores the xsell_type_name[1] value without neutralizing executable markup before later rendering it. Low-privileged administrative access is required to submit the value, and another user must load the affected page for script execution.

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

Cross-site scripting in osCommerce 4.12.56860 allows remote authenticated users to execute scripts in another user's browser. The /admin/xsell-types/save endpoint stores the xsell_type_name[1] value without neutralizing executable markup before later rendering it. Low-privileged administrative access is required to submit the value, and another user must load the affected page for script execution.

The record

CVE
CVE-2023-43729
Published
Sep 30, 2023
Updated
Sep 20, 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 20, 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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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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