Which versions of Kanboard are affected by CVE-2025-46825?

CVE-2025-46825 is a low-severity vulnerability in Kanboard involving cross-site scripting (CVSS 1.3).. A patch is available.

Is there a public PoC exploit available for CVE-2025-46825?

Yes, a public proof-of-concept exploit is available for CVE-2025-46825. Prioritise patching immediately. EPSS: 0.2%.

How to fix or mitigate CVE-2025-46825?

During next maintenance window: Apply vendor patches when convenient. Verify cross-site scripting controls are in place.

Kanboard CVE-2025-46825

Q: What is the CVSS score of CVE-2025-46825?

CVE-2025-46825 has a CVSS 4.0 base score of 1.3 (Low). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/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. EPSS exploitation probability: 0.2%.

LOW

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

2025-05-12 security-advisories@github.com

XSS Kanboard

1.3

CVSS 4.0 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

1.3 LOW

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/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

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/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

Scope

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:41 vuln.today

Patch released

Mar 28, 2026 - 18:41 nvd

Patch available

PoC Detected

Jul 11, 2025 - 14:41 vuln.today

Public exploit code

CVE Published

May 12, 2025 - 23:15 nvd

LOW 1.3

DescriptionGitHub Advisory

Kanboard is project management software that focuses on the Kanban methodology. Versions 1.2.26 through 1.2.44 have a Stored Cross-Site Scripting (XSS) Vulnerability in the name parameter of the http://localhost/?controller=ProjectCreationController&action=create form. This vulnerability allows attackers to inject malicious scripts into web pages viewed by other users. Note that the default content security policy (CSP) blocks the JavaScript attack, though it can be exploited if an instance is badly configured and the software is vulnerable to CSS injection because of the unsafe-inline on the default CSP. Version 1.2.45 contains a fix for the issue.

AnalysisAI

Kanboard is project management software that focuses on the Kanban methodology. Rated low severity (CVSS 1.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code 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. Kanboard is project management software that focuses on the Kanban methodology. Versions 1.2.26 through 1.2.44 have a Stored Cross-Site Scripting (XSS) Vulnerability in the name parameter of the http://localhost/?controller=ProjectCreationController&action=create form. This vulnerability allows attackers to inject malicious scripts into web pages viewed by other users. Note that the default content security policy (CSP) blocks the JavaScript attack, though it can be exploited if an instance is badly configured and the software is vulnerable to CSS injection because of the unsafe-inline on the default CSP. Version 1.2.45 contains a fix for the issue. Affected products include: Kanboard. Version information: through 1.2.44.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.