VulnerabilityPublished 8 Mar 2026Updated 10 Mar 2026

CVE-2026-3766: SourceCodester Web-based Pharmacy Product Management System · Cross-site Scripting

Affects SourceCodester Web-based Pharmacy Product Management SystemSource CVE Database V5

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Public exploit available · CVSS 5.1 Medium.

Data as of 29 Oct 2026, 19:04 UTC

CVSS 4.0 base score

5.1Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.2% chance of exploitation in 30 days – higher than 12% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

Base metrics

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: Low
User Interaction: Passive
Vulnerable system confidentiality: None
Vulnerable system integrity: Low
Vulnerable system availability: None
Subsequent system confidentiality: None
Subsequent system integrity: None
Subsequent system availability: None

Threat metrics

Exploit Maturity: POC

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Attack Requirements: None: The successful attack does not depend on the deployment and execution conditions of the vulnerable system. The attacker can expect to be able to reach the vulnerability and execute the exploit under all or most instances of the vulnerability.
Privileges Required: Low: The attacker requires privileges that provide basic capabilities that are typically limited to settings and resources owned by a single low-privileged user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources.
User Interaction: Passive: Successful exploitation of this vulnerability requires limited interaction by the targeted user with the vulnerable system and the attacker’s payload. These interactions would be considered involuntary and do not require that the user actively subvert protections built into the vulnerable system.
Vulnerable system confidentiality: None: There is no loss of confidentiality within the Vulnerable System.
Vulnerable system integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact to the Vulnerable System.
Vulnerable system availability: None: There is no impact to availability within the Vulnerable System.
Subsequent system confidentiality: None: There is no loss of confidentiality within the Subsequent System or all confidentiality impact is constrained to the Vulnerable System.
Subsequent system integrity: None: There is no loss of integrity within the Subsequent System or all integrity impact is constrained to the Vulnerable System.
Subsequent system availability: None: There is no impact to availability within the Subsequent System or all availability impact is constrained to the Vulnerable System.
Exploit Maturity: POC: Based on threat intelligence sources each of the following must apply: · Proof-of-concept is publicly available · No knowledge of reported attempts to exploit this vulnerability · No knowledge of publicly available solutions used to simplify attempts to exploit the vulnerability

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 8 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
SourceCodesterWeb-based Pharmacy Product Management System	Affected =1.0	Fixed in–

AI-suggested

To mitigate CVE-2026-3766 effectively, organizations should implement the following specific measures: 1) Apply strict input validation on the 'fullname' parameter and any other user-supplied inputs, ensuring that special characters and script tags are properly sanitized or rejected. 2) Employ context-aware output encoding (e.g., HTML entity encoding) before rendering user inputs in the web interface to prevent script execution. 3) Deploy a Web Application Firewall (WAF) configured to detect and block common XSS attack patterns targeting the affected endpoint. 4) Educate users about the risks of clicking on suspicious links or interacting with untrusted content that could trigger XSS payloads. 5) Monitor application logs and network traffic for unusual activity indicative of exploitation attempts. 6) Engage with the vendor or community to obtain patches or updates as soon as they become available and prioritize their deployment. 7) Consider implementing Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts within the application context. 8) Conduct regular security assessments and code reviews focusing on input handling and output encoding practices. These targeted actions go beyond generic advice and address the specific attack vector and environment of the vulnerability.

Description

A security flaw has been discovered in SourceCodester Web-based Pharmacy Product Management System 1.0. This impacts an unknown function of the file edit-profile.php. Performing a manipulation of the argument fullname results in cross site scripting. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks.

Impact

The impact of CVE-2026-3766 on organizations worldwide can be significant, especially in healthcare and pharmaceutical sectors that rely on the affected management system. Successful exploitation allows attackers to execute arbitrary scripts in the context of authenticated users, risking session hijacking, theft of sensitive information such as user credentials or patient data, and unauthorized actions within the application. This can lead to data breaches, loss of trust, regulatory penalties, and operational disruptions. Since the vulnerability requires user interaction, phishing or social engineering campaigns could be used to lure users into triggering the exploit. The exposure of sensitive healthcare data could have severe privacy implications and potentially impact patient safety. Additionally, attackers could use the vulnerability as a foothold for further network intrusion or lateral movement. The availability of a public exploit increases the likelihood of attacks, making timely mitigation critical. Organizations without adequate input validation or monitoring controls are particularly vulnerable.

Summary

CVE-2026-3766 is a cross-site scripting vulnerability identified in version 1.0 of the SourceCodester Web-based Pharmacy Product Management System. The vulnerability resides in the edit-profile.php script, where the 'fullname' parameter is improperly sanitized, allowing an attacker to inject malicious JavaScript code. This flaw can be exploited remotely without requiring prior authentication, although user interaction is necessary to trigger the malicious payload. The vulnerability impacts the confidentiality and integrity of user sessions by enabling attackers to execute arbitrary scripts, potentially leading to session hijacking, credential theft, or unauthorized actions within the application. The CVSS 4.0 vector indicates low attack complexity and no privileges required, but user interaction is needed. No patches or official fixes have been published yet, and while no active exploitation has been observed, a public exploit is available, increasing the risk of opportunistic attacks. The vulnerability is particularly concerning for healthcare environments where the system manages sensitive pharmacy product data, potentially exposing patient or operational information. Mitigation currently relies on implementing strict input validation, output encoding, and possibly deploying web application firewalls to detect and block malicious payloads. Organizations should monitor for updates from the vendor and apply patches promptly once available.

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What to do

Affected software

Description

AI analysisMachine-generated, updated 16 Mar 2026, 09:23 UTC

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