Reflected Cross-Site Scripting Vulnerability in YesWiki by YesWiki
CVE-2026-116823

5.3MEDIUM

Key Information:

Vendor

Yeswiki

Status
Yeswiki
Vendor
CVE Published:
26 October 2026

What is CVE-2026-116823?

The vulnerability in YesWiki allows unauthenticated attackers to exploit reflected cross-site scripting by injecting malicious JavaScript. This is done by crafting specific query parameters that match unvalidated Bazar field names. Consequently, if BazarField::getValue() defaults to unsanitized values from the $_REQUEST array, any action performed can occur within authenticated user sessions. This poses a significant risk to users' sessions and the overall integrity of the application.

Affected Version(s)

yeswiki 0 < 4.7.0

yeswiki 4.7.0

References

https://github.com/YesWiki/yeswiki/security/advisories/GH...
vendor-advisory
https://www.vulncheck.com/advisories/yeswiki-before-4.7.0...
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

manus-pi
manus-use
.