VulnerabilityPublished 27 Oct 2026

CVE-2026-116639: MD-MAFUJUL-HASAN Online-Payroll-Management-System · Cross-site Scripting

Affects MD-MAFUJUL-HASAN Online-Payroll-Management-SystemSource CVE Database V5

Public exploit available · CVSS 5.1 Medium.

Data as of 27 Oct 2026, 01:57 UTC

CVSS 4.0 base score

5.1Medium

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

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 27 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 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.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, 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
MD-MAFUJUL-HASANOnline-Payroll-Management-System	Affected =a8902bf64575e325f6d6bf93a55f7bd273ec58cd	Fixed in–

CPE configurations (1)

cpe:2.3:a:md-mafujul-hasan:online-payroll-management-system:*:*:*:*:*:*:*:*

AI-suggested

Users should monitor the vendor's communications for updates. Until a fix is released, consider applying input validation or output encoding on the 'ID' parameter if possible, or restrict access to the vulnerable component. Avoid interacting with untrusted inputs in the chat.php functionality.

Description

CVE-2026-116639 is a cross-site scripting (XSS) vulnerability in the MD-MAFUJUL-HASAN Online-Payroll-Management-System affecting an unknown function in chat.php. The vulnerability arises from manipulation of the 'ID' argument and can be exploited remotely. The product uses a rolling release model, so no specific affected or fixed versions are available. The issue was reported early to the project, but no response or fix has been provided yet. Public exploit code is available. The CVSS 4.0 score is 5.1, indicating medium severity.

Impact

Successful exploitation allows an attacker to execute arbitrary scripts in the context of users interacting with the vulnerable chat.php component. This can lead to session hijacking, defacement, or other malicious actions performed on behalf of the victim. The vulnerability requires low attack complexity and no privileges but does require user interaction. The medium CVSS score reflects these factors.

Summary

This vulnerability in the MD-MAFUJUL-HASAN Online-Payroll-Management-System allows remote attackers to perform cross-site scripting by manipulating the 'ID' parameter in the chat.php file. The flaw enables injection of malicious scripts that could execute in the context of the victim's browser. The product's rolling release model means no discrete versions are identified as affected or fixed. The vendor has not responded to the early report, and public exploit code exists, increasing the risk of exploitation.

References

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