UpHeron
All vulnerabilities

Servers and applications

CVE-2025-46348

Uauthenticated Site Backup Creation and Download

Severity
Critical 9.8
Published
28 Apr 2025
Last changed
17 Jun 2026
Added to UpHeron
3 Nov 2026
Fixed in
4.5.4
Also known as
GHSA-wc9g-6j9w-hr95
Sources
NVD, Project advisories (GitHub)

Description

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 create and download an archive without being authenticated. This could result in a malicious attacker making numerous requests to create archives and fill up…

Affected software

SoftwareAffected versions
YesWikiServers and applications · cpe:a:yeswiki:yeswiki
  • Every version before 4.5.4
YesWikiServers and applications · github:yeswiki/yeswiki
  • Every version before 4.5.4

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-46348
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-46348
  • GitHub Advisory Database https://github.com/advisories/GHSA-wc9g-6j9w-hr95
  • github.com https://github.com/YesWiki/yeswiki/security/advisories/GHSA-wc9g-6j9w-hr95