Auth bypass in Yeswiki
CVE-2025-46348
YesWiki is a wiki system written in PHP. Prior to version 4.5.4, the request to commence a site backup can be performed and downloaded without authentication. The archives are created with a predictable filename, so a malicious user could…
Vulnerability class: Broken Authentication
EPSS: 0.006 (42.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
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-2025-46348?
- CVE-2025-46348 is a critical-severity vulnerability in Yeswiki, classified under Improper Authentication. CVSS score: 10.0/10. Published 2025-04-29.
- How severe is CVE-2025-46348?
- Critical severity. CVSS v3 base score is 10.0 out of 10.
- Is CVE-2025-46348 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.