VulnerabilityPublished 22 Feb 2026Updated 25 Feb 2026

CVE-2026-2939: itsourcecode Student Management System · Cross-site Scripting

Affects itsourcecode Student Management SystemSource CVE Database V5

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Public exploit available · CVSS 4.8 Medium.

Data as of 29 Oct 2026, 19:04 UTC

CVSS 4.0 base score

4.8Medium

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

EPSS: 0.2% chance of exploitation in 30 days – higher than 19% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/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: High
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: High: The attacker requires privileges that provide significant (e.g., administrative) control over the vulnerable system allowing full access to the vulnerable system’s settings and files.
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 22 Feb 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
itsourcecodeStudent Management System	Affected =1.0	Fixed in–

AI-suggested

To mitigate CVE-2026-2939, organizations should implement strict input validation and output encoding on all user-supplied data within the Add Student Module, particularly in the /add_student/ endpoint. Employing a web application firewall (WAF) with rules designed to detect and block common XSS payloads can provide an additional layer of defense. Administrators should monitor logs for suspicious activity related to this module and educate users about the risks of clicking unknown links or submitting untrusted input. Until an official patch is released, consider restricting access to the vulnerable module or isolating it within a segmented network environment to limit exposure. Conduct thorough code reviews and penetration testing focused on input handling in the affected component. Additionally, implementing Content Security Policy (CSP) headers can help mitigate the impact of XSS by restricting the execution of unauthorized scripts. Finally, maintain regular backups of critical data to ensure recovery in case of compromise.

Description

A vulnerability was found in itsourcecode Student Management System 1.0. The impacted element is an unknown function of the file /add_student/ of the component Add Student Module. The manipulation results in cross site scripting. It is possible to launch the attack remotely. The exploit has been made public and could be used.

Impact

The primary impact of CVE-2026-2939 is the potential compromise of user session integrity and confidentiality within the itsourcecode Student Management System. Attackers exploiting this XSS vulnerability can execute arbitrary scripts in the context of authenticated users, leading to session hijacking, theft of credentials, or unauthorized actions such as data manipulation or privilege escalation within the system. This can undermine the trustworthiness of the student management platform, potentially exposing sensitive student and staff information. While the vulnerability does not directly affect system availability or integrity at a broad scale, successful exploitation could facilitate further attacks or data breaches. Educational institutions relying on this software may face reputational damage, regulatory compliance issues, and operational disruptions. The remote and unauthenticated nature of the exploit increases the risk, especially in environments where users may be less aware of phishing or social engineering tactics. However, the requirement for user interaction limits automated exploitation, reducing the likelihood of widespread attacks without targeted campaigns.

Summary

CVE-2026-2939 identifies a cross-site scripting (XSS) vulnerability in the itsourcecode Student Management System version 1.0, specifically within the Add Student Module's /add_student/ endpoint. The vulnerability arises from improper input validation or output encoding in an unknown function of this module, allowing attackers to inject malicious JavaScript code. This injection can be triggered remotely without authentication, but requires user interaction, such as a victim clicking a malicious link or submitting crafted input. The vulnerability is classified as reflected or stored XSS depending on the module's behavior, potentially enabling attackers to execute arbitrary scripts in the context of the victim's browser session. This can lead to theft of session cookies, redirection to malicious sites, or unauthorized actions performed on behalf of the user. The CVSS 4.8 score reflects a medium severity, considering the ease of remote exploitation but limited impact on confidentiality and availability. No patches or official fixes have been published yet, and no known exploits are reported in the wild. The vulnerability affects only version 1.0 of the software, which is used primarily in educational environments for managing student data. The lack of authentication requirement for exploitation increases the attack surface, but the need for user interaction somewhat limits automated mass exploitation. The vulnerability highlights the importance of secure coding practices, particularly input sanitization and output encoding in web applications handling sensitive educational data.

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 2 Mar 2026, 04:30 UTC

Technical details

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