CVE-2023-49971Public exploitNetwork attack vector

Administrator-session script execution via unencoded customer firstname

Published Mar 6, 2024 · Updated Aug 6, 2024

Stored XSS in SourceCodester Customer Support System 1.0 allows remote authenticated users to execute scripts in an administrator's browser. The save_customer action stores the firstname value as submitted, and customer_list renders that value into HTML without neutralizing script markup. The published reproduction requires login to create or edit a customer and a later customer_list visit, so execution occurs in the visiting user's session.

CVSS severity6.1
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

Stored XSS in SourceCodester Customer Support System 1.0 allows remote authenticated users to execute scripts in an administrator's browser. The save_customer action stores the firstname value as submitted, and customer_list renders that value into HTML without neutralizing script markup. The published reproduction requires login to create or edit a customer and a later customer_list visit, so execution occurs in the visiting user's session.

The record

CVE
CVE-2023-49971
Published
Mar 6, 2024
Updated
Aug 6, 2024
Vendor
Online Computer and Laptop Store Project
Product
Customer Support System
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 6, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 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=1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Online Computer and Laptop Store Project · Customer Support Systemversion=1.0

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.7CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

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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