XSS in Yeswiki
CVE-2025-46349
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.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.006 (46.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L.
Affected products
- Yeswiki — versions < 4.5.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-46349?
- CVE-2025-46349 is a high-severity vulnerability in Yeswiki, classified under Cross-site Scripting. CVSS score: 7.6/10. Published 2025-04-29.
- How severe is CVE-2025-46349?
- High severity. CVSS v3 base score is 7.6 out of 10.
- Is CVE-2025-46349 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.