CVE-2026-34598CWE-79CWE-87cross-site-scripting

CVE-2026-34598

Medium · published April 2, 2026

CVSS v3.1
6.1
EPSS
0%
Percentile
23.0
In the wild
Unconfirmed
What it is

YesWiki is a wiki system written in PHP. Prior to version 4.6.0, a stored and blind XSS vulnerability exists in the form title field. A malicious attacker can inject JavaScript without any authentication via a form title that is saved in the backend database. When any user visits that injected page, the JavaScript payload gets executed. This issue has been patched in version 4.6.0.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00314 · 23.0th percentile
Weaknesses
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'); CWE-87 · Improper Neutralization of Alternate XSS Syntax
Published
2026-04-02T22:16Z
Affected products (1)
ProductVersionsFixed in
yeswiki/yeswiki< 4.6.04.6.0
References (2)
https://github.com/YesWiki/yeswiki/releases/tag/v4.6.0 · [email protected]https://github.com/YesWiki/yeswiki/security/advisories/GHSA-37fq-47qj-6j5j · [email protected]
EPSS history
Timeline
  • 02 APR 17:37Z
    YesWiki has Persistant Blind XSS at "/?BazaR&vue=consulter"
    cvelistv5