What is the CVSS score of CVE-2025-46349?

CVE-2025-46349 has a CVSS 3.1 base score of 7.6 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L. EPSS exploitation probability: 0.4%.

Which versions of Yeswiki are affected by CVE-2025-46349?

Organizations using PHP. face notable risk from CVE-2025-46349, a cross-site scripting vulnerability rated CVSS 7.6.. A patch is available.

Is there a public PoC exploit available for CVE-2025-46349?

Yes, a public proof-of-concept exploit is available for CVE-2025-46349. Prioritise patching immediately. EPSS: 0.4%.

How to fix or mitigate CVE-2025-46349?

Within 7 days: Identify all affected systems running PHP. and apply vendor patches promptly. Verify anti-CSRF tokens and content security policies are enforced.

Yeswiki CVE-2025-46349

HIGH

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

2025-04-29 security-advisories@github.com

XSS File Upload Yeswiki

7.6

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

7.6 HIGH

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

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

CVSS VectorGitHub Advisory

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

High

Availability

Low

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:39 vuln.today

Patch released

Mar 28, 2026 - 18:39 nvd

Patch available

PoC Detected

May 09, 2025 - 13:56 vuln.today

Public exploit code

CVE Published

Apr 29, 2025 - 18:15 nvd

HIGH 7.6

DescriptionGitHub Advisory

YesWiki is a wiki system written in PHP. Prior to version 4.5.4, YesWiki is vulnerable to reflected XSS in the file upload form. This vulnerability allows any malicious unauthenticated user to create a link that can be clicked on by the victim to perform arbitrary actions. This issue has been patched in version 4.5.4.

AnalysisAI

YesWiki is a wiki system written in PHP. Rated high severity (CVSS 7.6), 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. YesWiki is a wiki system written in PHP. Prior to version 4.5.4, YesWiki is vulnerable to reflected XSS in the file upload form. This vulnerability allows any malicious unauthenticated user to create a link that can be clicked on by the victim to perform arbitrary actions. This issue has been patched in version 4.5.4. Affected products include: Yeswiki. Version information: version 4.5.4.

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.