VulnerabilityPublished 2 Mar 2026

CVE-2026-3412: itsourcecode University Management System · Cross-site Scripting

Affects itsourcecode University Management SystemSource CVE Database V5

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Public exploit available · CVSS 5.3 Medium.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 4.0 base score

5.3Medium

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

EPSS: 0.3% chance of exploitation in 30 days – higher than 24% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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: None
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: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.
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 2 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
itsourcecodeUniversity Management System	Affected =1.0	Fixed in–
GitHubdyh1213-wq/cve`pkg:github/dyh1213-wq/cve`Other threats	Affected =1.0	Fixed in–

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AI-suggested

To mitigate CVE-2026-3412, organizations should first check for any official patches or updates from itsourcecode and apply them promptly once available. In the absence of patches, implement input validation and output encoding on the 'dt' parameter to ensure that any user-supplied data is properly sanitized before rendering in the browser. Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts and reduce the impact of potential XSS attacks. Educate users about the risks of clicking on suspicious links or opening untrusted content, especially within the university environment. Monitor web application logs for unusual requests targeting the vulnerable parameter and consider deploying web application firewalls (WAFs) with rules to detect and block XSS payloads. Regularly audit and test the application for other potential injection points and maintain an incident response plan to quickly address any exploitation attempts. Finally, consider upgrading to newer, supported versions of the software or alternative solutions with improved security.

Description

A vulnerability was detected in itsourcecode University Management System 1.0. This affects an unknown part of the file /att_single_view.php. The manipulation of the argument dt results in cross site scripting. The attack can be executed remotely. The exploit is now public and may be used.

Impact

The primary impact of CVE-2026-3412 is on the confidentiality and integrity of user sessions within the affected University Management System. Successful exploitation can allow attackers to steal session cookies, enabling account takeover or impersonation of legitimate users. This can lead to unauthorized access to sensitive academic records, personal information, or administrative functions. Additionally, attackers could perform actions on behalf of users, potentially modifying attendance records or other critical data. While the vulnerability does not directly affect system availability, the resulting unauthorized actions or data breaches could disrupt university operations and damage institutional reputation. The presence of a public exploit increases the likelihood of exploitation, especially in environments where users are not trained to recognize phishing or malicious links. Organizations worldwide using this software version face risks of data breaches, compliance violations, and operational disruptions.

Summary

CVE-2026-3412 is a cross-site scripting (XSS) vulnerability identified in the itsourcecode University Management System version 1.0. The flaw resides in the /att_single_view.php script, specifically in the handling of the 'dt' parameter. This parameter is not properly sanitized or encoded before being reflected in the web page, enabling attackers to inject arbitrary JavaScript code. The vulnerability is exploitable remotely without requiring any authentication, though it necessitates user interaction to trigger the malicious script, such as clicking a crafted link or visiting a malicious page. The impact of this XSS vulnerability includes the potential for attackers to execute scripts in the context of the victim’s browser session, which can lead to session hijacking, theft of sensitive information like cookies or credentials, and unauthorized actions performed on behalf of the user. The vulnerability has a CVSS 4.0 base score of 5.3, indicating a medium severity level. No official patches or updates have been linked yet, and no active exploitation has been reported, but a public exploit is available, increasing the risk of opportunistic attacks. The vulnerability affects only version 1.0 of the product, which is used primarily in educational institutions for university management tasks. Given the nature of the vulnerability and the affected software, attackers could target university staff, students, or administrators to gain unauthorized access or disrupt operations.

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 2 Mar 2026, 05:55 UTC

Technical details

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