CVE-2025-3821Public exploitNetwork attack vector

Authenticated script execution via unescaped POST fields

Published Apr 20, 2025 · Updated Apr 21, 2025

XSS in SourceCodester Web-based Pharmacy Product Management System 1.0 allows remote authenticated users to run scripts through crafted POST fields. The add-admin.php form inserts txtemail, txtfullname, and txtpassword POST values directly into HTML attributes without output encoding. Access requires a logged-in session, and execution occurs when the crafted form response is rendered in a browser.

CVSS severity4.8
Medium
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

XSS in SourceCodester Web-based Pharmacy Product Management System 1.0 allows remote authenticated users to run scripts through crafted POST fields. The add-admin.php form inserts txtemail, txtfullname, and txtpassword POST values directly into HTML attributes without output encoding. Access requires a logged-in session, and execution occurs when the crafted form response is rendered in a browser.

The record

CVE
CVE-2025-3821
Published
Apr 20, 2025
Updated
Apr 21, 2025
Vendor
Online Computer and Laptop Store Project
Product
Web-based Pharmacy Product Management System
Classifications
CWE-94, CWE-79
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 20, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 21, 2025Record 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 · Web-based Pharmacy Product Management Systemversion=1.0

Published CVSS scores

3.3VulDBAV:N/AC:L/Au:M/C:N/I:P/A:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
2.4VulDBCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N
4.8VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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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