What is the CVSS score of CVE-2025-49149?

CVE-2025-49149 has a CVSS 3.1 base score of 6.1 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.1%.

Which versions of Dify are affected by CVE-2025-49149?

Organizations using Dify should be aware of moderate risk from CVE-2025-49149, a cross-site scripting vulnerability rated CVSS 6.1.

Is there a public PoC exploit available for CVE-2025-49149?

Yes, a public proof-of-concept exploit is available for CVE-2025-49149. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2025-49149?

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

Dify CVE-2025-49149

EUVD-2025-18567 MEDIUM

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

2025-06-17 security-advisories@github.com

XSS Dify

6.1

CVSS 3.1

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

EUVD ID Assigned

Mar 14, 2026 - 22:15 euvd

EUVD-2025-18567

Analysis Generated

Mar 14, 2026 - 22:15 vuln.today

PoC Detected

Aug 01, 2025 - 22:13 vuln.today

Public exploit code

CVE Published

Jun 17, 2025 - 23:15 nvd

MEDIUM 6.1

DescriptionNVD

Dify is an open-source LLM app development platform. In version 1.2.0, there is insufficient filtering of user input by web applications. Attackers can use website vulnerabilities to inject malicious script code into web pages. This may result in a cross-site scripting (XSS) attack when a user browses these web pages. At time of posting, there is no known patched version.

Analysis

Technical ContextAI

Cross-site scripting (XSS) allows injection of client-side scripts into web pages viewed by other users due to insufficient output encoding.

RemediationAI

Encode all user-supplied output contextually (HTML, JS, URL). Implement Content Security Policy (CSP) headers. Use HTTPOnly and Secure cookie flags.

CVE-2025-49149 vulnerability details – vuln.today

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