What is the CVSS score of CVE-2025-51662?

CVE-2025-51662 has a CVSS 3.1 base score of 5.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.0%.

Which versions of Filecodebox are affected by CVE-2025-51662?

Organizations using the text sharing feature of FileCodeBox should be aware of moderate risk from CVE-2025-51662, a cross-site scripting vulnerability rated CVSS 5.4.

Is there a public PoC exploit available for CVE-2025-51662?

Yes, a public proof-of-concept exploit is available for CVE-2025-51662. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2025-51662?

Within 30 days: Identify affected systems running the text sharing feature of FileCodeBox and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Filecodebox CVE-2025-51662

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2025-11-19 cve@mitre.org

XSS Filecodebox

5.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.4 MEDIUM

AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:23 vuln.today

PoC Detected

Nov 24, 2025 - 19:40 vuln.today

Public exploit code

CVE Published

Nov 19, 2025 - 20:15 nvd

MEDIUM 5.4

DescriptionCVE.org

A stored cross-site scripting (XSS) vulnerability is found in the text sharing feature of FileCodeBox version 2.2 and earlier. Insufficient input validation allows attackers to inject arbitrary JavaScript code into shared text "codeboxes". The xss payload is automatically executed in the browsers of any users who try to access the infected codebox by clicking link or entering share code.

AnalysisAI

A stored cross-site scripting (XSS) vulnerability is found in the text sharing feature of FileCodeBox version 2.2 and earlier. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. A stored cross-site scripting (XSS) vulnerability is found in the text sharing feature of FileCodeBox version 2.2 and earlier. Insufficient input validation allows attackers to inject arbitrary JavaScript code into shared text "codeboxes". The xss payload is automatically executed in the browsers of any users who try to access the infected codebox by clicking link or entering share code. Affected products include: Lanol Filecodebox. Version information: version 2.2.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.

CVE-2025-51662 vulnerability details – vuln.today

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