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Timetabling System CVE-2026-15595

LOW
Cross-site Scripting (XSS) (CWE-79)
2026-07-13 VulDB
2.1
CVSS 4.0 · Vendor: VulDB

Severity by source

Vendor (VulDB) PRIMARY
2.1 MEDIUM
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
6.1 MEDIUM

Network-delivered reflected XSS requires user interaction (UI:R), changes scope to browser (S:C), and enables session theft (C:L) and content manipulation (I:L).

3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (VulDB).

CVSS VectorVendor: VulDB

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
P
Scope
X

Lifecycle Timeline

4
Severity Changed
Jul 13, 2026 - 21:22 NVD
MEDIUM LOW
CVSS changed
Jul 13, 2026 - 21:22 NVD
5.3 (MEDIUM) 2.1 (LOW)
Analysis Generated
Jul 13, 2026 - 21:02 vuln.today
CVE Published
Jul 13, 2026 - 20:30 cve.org
MEDIUM 5.3

DescriptionCVE.org

A vulnerability was determined in SourceCodester Class and Exam Timetabling System 1.0. The affected element is an unknown function of the file /forsubject.php. This manipulation of the argument subject causes cross site scripting. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized.

AnalysisAI

Reflected cross-site scripting in SourceCodester Class and Exam Timetabling System 1.0 allows remote unauthenticated attackers to inject arbitrary JavaScript via the unsanitized subject parameter in /forsubject.php. A victim user must interact with a crafted URL for the payload to execute in their browser. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Recon
Identify target instance
Delivery
Craft malicious URL with XSS payload in subject parameter
Exploit
Deliver link to victim via phishing or social engineering
Install
Victim clicks link, browser requests /forsubject.php
C2
Application reflects unsanitized subject parameter in HTML
Execute
Injected script executes in victim's browser session
Impact
Steal session cookie or perform action as victim

Vulnerability AssessmentAI

Exploitation The attack requires victim user interaction: a targeted user must click or otherwise request the attacker-crafted URL containing the malicious `subject` parameter (CVSS 4.0 UI:P). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 score of 5.3 (Medium) reflects the user-interaction requirement (UI:P) that gates this attack, meaning exploitation is not fully passive. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker crafts a URL pointing to `/forsubject.php` with a JavaScript payload embedded in the `subject` parameter - for example, a script tag that exfiltrates the victim's session cookie to an attacker-controlled server. The attacker distributes this URL to an authenticated user of the timetabling system via phishing email or message. …
Remediation No vendor-released patch or updated version has been identified at the time of this analysis - patch status is unconfirmed, and no official advisory was located at the SourceCodester site. … Detailed patch versions, workarounds, and compensating controls in full report.

Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-15595 vulnerability details – vuln.today

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