CVE-2025-46349
Published: 29 April 2025
Summary
CVE-2025-46349 is a high-severity Cross-site Scripting (CWE-79) vulnerability in Yeswiki Yeswiki. Its CVSS base score is 7.6 (High).
Operationally, ranked in the top 41.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
YesWiki, a wiki system written in PHP, contains a reflected cross-site scripting flaw in the file upload form that affects all versions prior to 4.5.4. The vulnerability is tracked as CWE-79 and carries a CVSS 3.1 score of 7.6 reflecting network attack vector, low complexity, no required privileges, and required user interaction.
An unauthenticated attacker can supply a crafted link that triggers the reflected XSS when opened by a victim, allowing the attacker to execute arbitrary actions within the victim's session and context.
The project has released version 4.5.4 to correct the issue, with the fix documented in the associated GitHub commit and security advisory GHSA-2f8p-qqx2-gwr2.
The EPSS probability rose from a low baseline to a recorded peak of 0.0114, indicating that exploitation interest emerged after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-12615
Vulnerability details
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…
more
the victim to perform arbitrary actions. This issue has been patched in version 4.5.4.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.
Validates web inputs to reject script-related content that could produce XSS.
Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.