Reflected XSS Vulnerabilities in YesWiki Prior to Version 4.5.3
CVE-2026-104473

5.1MEDIUM

Key Information:

Vendor

Yeswiki

Status
Yeswiki
Vendor
CVE Published:
2 October 2026

What is CVE-2026-104473?

YesWiki versions prior to 4.5.3 are susceptible to multiple reflected cross-site scripting (XSS) vulnerabilities. Attackers can exploit these vulnerabilities by crafting malicious links that include unsanitized parameters such as 'incomingurl', 'id', 'file', 'tags', and 'template'. When users—whether authenticated or unauthenticated—click on these links, their sessions may be hijacked, allowing attackers to execute unauthorized actions by triggering authenticated requests to backend functionalities.

Affected Version(s)

yeswiki 0 < 4.5.3

yeswiki 4.5.3

References

https://github.com/YesWiki/yeswiki/security/advisories/GH...
vendor-advisory
https://www.vulncheck.com/advisories/yeswiki-before-4.5.3...
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

pizza-power
.