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Class and Exam Timetabling System CVE-2026-78055

| EUVDEUVD-2026-64619 LOW
Cross-site Scripting (XSS) (CWE-79)
2026-08-23 VulDB GHSA-8wh2-r774-f9x3
PHP XSS Class And Exam Timetabling System
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 requiring victim click (UI:R); scope changes to browser context (S:C) enabling session theft (C:L) and content injection (I:L); no availability impact.

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:N/VI:L/VA:N/SC:L/SI:L/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
Aug 23, 2026 - 02:22 NVD
MEDIUM LOW
CVSS changed
Aug 23, 2026 - 02:22 NVD
5.3 (MEDIUM) 2.1 (LOW)
Analysis Generated
Aug 23, 2026 - 02:13 vuln.today
CVE Published
Aug 23, 2026 - 01:00 cve.org
MEDIUM 5.3

DescriptionCVE.org

A security vulnerability has been detected in SourceCodester Class and Exam Timetabling System 1.0. Affected by this vulnerability is an unknown functionality of the file /BSIT2.php. The manipulation of the argument course leads to cross site scripting. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used.

AnalysisAI

Cross-site scripting in SourceCodester Class and Exam Timetabling System 1.0 allows remote attackers to inject arbitrary JavaScript via the unsanitized course parameter in /BSIT2.php. Exploitation requires victim interaction (UI:P per CVSS 4.0) but no authentication (PR:N), enabling session hijacking or phishing against users of the affected application. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Craft URL with XSS payload in `course` parameter
Delivery
Deliver crafted link to target user
Exploit
Victim loads /BSIT2.php with injected payload
Execution
Browser executes attacker script in victim session
Impact
Exfiltrate session token or perform authenticated actions
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Vulnerability AssessmentAI

Exploitation The CVSS 4.0 vector (UI:P) confirms that a victim must actively interact with a crafted link or page - the attacker cannot exploit this passively without user engagement. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 score of 5.3 (Medium) with AV:N/AC:L/PR:N/UI:P correctly captures the essential dynamic: network-reachable and trivially exploitable, but gated on victim interaction. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker identifies a publicly accessible deployment of SourceCodester Class and Exam Timetabling System 1.0 and crafts a URL embedding a JavaScript payload in the `course` parameter pointing to `/BSIT2.php`. The attacker delivers this URL to a target user - a student, faculty member, or administrator - via email or messaging; when the victim loads the page, the injected script executes in their browser, exfiltrating their session cookie to an attacker-controlled server. …
Remediation No vendor-released patch has been identified at time of analysis; SourceCodester does not maintain a formal patch lifecycle for its free script catalog. … Detailed patch versions, workarounds, and compensating controls in full report.
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CVE-2026-78055 vulnerability details – vuln.today
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