Yeswiki Yeswiki vulnerabilities
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Published CVEs affecting Yeswiki Yeswiki: 53 record(s), with affected versions and fixes.cpe:2.3:a:yeswiki:yeswiki
CVE-2026-52778
Critical · 9.8
CWE-94 Jun 8, 2026
YesWiki has Unsafe eval() in Formula Calculator - Remote Code Execution (RCE) & Denial of Service (DoS)
YesWiki is a wiki system written in PHP. Prior to version 4.6.6, an unsafe execution vulnerability exists in the Bazar form field calculator (CalcField.php) of YesWiki. The application attempts to sanitize user-defined mathematical formulas using a complex recursive regular expression before passing them to the PHP eval() function. This implementation is inherently flawed: it is vulnerable to Regular Expression Denial of Service (ReDoS / Stack Overflow) which can crash the server, and it creates a high-risk architecture where any logic bypass directly results in arbitrary PHP code execution. Version 4.6.6 patches the issue.
CVE-2026-41143
High · 8.8
CWE-89 May 7, 2026
YesWiki vulnerable to authenticated SQL Injection via id_fiche in EntryManager::formatDataBeforeSave()
YesWiki is a wiki system written in PHP. Prior to version 4.6.1, YesWiki bazar module contains a SQL injection vulnerability in tools/bazar/services/EntryManager.php at line 704. The $data['id_fiche'] value (sourced from $_POST['id_fiche']) is concatenated directly into a raw SQL query without any sanitization or parameterization. This issue has been patched in version 4.6.1.
CVE-2026-34598
Medium · 6.1
CWE-79 Apr 2, 2026
YesWiki has Persistant Blind XSS at "/?BazaR&vue=consulter"
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.