CVE-2021-47913

MEDIUM
2026-02-01 [email protected]
6.4
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 22:01 vuln.today
PoC Detected
Feb 11, 2026 - 19:29 vuln.today
Public exploit code
CVE Published
Feb 01, 2026 - 13:15 nvd
MEDIUM 6.4

Tags

XSS Php Melody

Description

PHP Melody 3.0 contains a persistent cross-site scripting vulnerability in the video editor that allows privileged users to inject malicious scripts. Attackers can exploit the WYSIWYG editor to execute persistent scripts, potentially leading to session hijacking and application manipulation.

Analysis

PHP Melody 3.0 contains a persistent cross-site scripting vulnerability in the video editor that allows privileged users to inject malicious scripts. Attackers can exploit the WYSIWYG editor to execute persistent scripts, potentially leading to session hijacking and application manipulation. [CVSS 6.4 MEDIUM]

Technical Context

Classified as CWE-79 (Cross-site Scripting (XSS)). Affects Php Melody. PHP Melody 3.0 contains a persistent cross-site scripting vulnerability in the video editor that allows privileged users to inject malicious scripts. Attackers can exploit the WYSIWYG editor to execute persistent scripts, potentially leading to session hijacking and application manipulation.

Affected Products

Vendor: Phpsugar. Product: Php Melody. Versions: up to 3.0.

Remediation

Monitor vendor advisories for a patch. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.

Priority Score

52
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +32
POC: +20

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CVE-2021-47913 vulnerability details – vuln.today
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