{"id":"GHSA-ggqx-43h2-55jp","aliases":["CVE-2025-46550"],"title":"Yeswiki Vulnerable to Unauthenticated Reflected Cross-site Scripting","description":"### Summary\n**Vulnerable Version:** Yeswiki < v4.5.4\n**Category:** Injection\n**CWE: 79:** Improper Neutralization of Input During Web Page Generation (CWE-79)\n**CVSS:** 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)\n**Vulnerable Endpoint:** `/?BazaR`\n**Vulnerable Parameter:** `idformulaire`\n**Payload:** `<script>alert(1)</script>`\n\n### Details\nReflected Cross-Site Scripting (XSS) attacks are a type of injection, in which malicious scripts are injected into otherwise benign and trusted websites. XSS attacks occur when an attacker uses a web application to send malicious code, generally in the form of a browser-side script, to a different end user. Flaws that allow these attacks to succeed are quite widespread and occur anywhere a web application uses input from a user within the output it generates without validating or encoding it.\n\n### PoC\n1. Visit the endpoint as mentioned below and see that an alert box pops up:\n**URL with Payload:** `https://yeswiki.net/?BazaR&vue=formulaire&action=confirm_delete&idformulaire=%3cscript%3ealert(1)%3c%2fscript%3e`\n\n### Impact\nAn attacker can use a reflected cross-site scripting attack to steal cookies from an authenticated user by having them click on a malicious link. Stolen cookies allow the attacker to take over the user’s session. This vulnerability may also allow attackers to deface the website or embed malicious content.","severity":"medium","score":5.3,"published":"2025-04-29T14:36:10.000Z","modified":"2026-09-10T03:50:23.934Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"Packagist","name":"yeswiki/yeswiki","ranges":[{"events":[{"introduced":"0"},{"fixed":"4.5.4"}],"type":"ECOSYSTEM"}],"versions":["4.2.3","v4.1.0","v4.1.1","v4.1.2","v4.1.3","v4.1.4","v4.1.5","v4.2.0","v4.2.1","v4.2.2","v4.2.4","v4.3","v4.3.1","v4.4.0","v4.4.1","v4.4.2","v4.4.3","v4.4.4","v4.4.5","v4.5.0","v4.5.1","v4.5.2","v4.5.3"],"fixed":["4.5.4"]}],"references":["https://github.com/YesWiki/yeswiki/security/advisories/GHSA-ggqx-43h2-55jp","https://nvd.nist.gov/vuln/detail/CVE-2025-46550","https://github.com/YesWiki/yeswiki/commit/4e9e51d80cd024ed2ac5c12c820817e6d8c2655a","https://github.com/YesWiki/yeswiki"],"sources":[{"name":"OSV","id":"GHSA-ggqx-43h2-55jp","modified":"2026-09-10T03:50:23.934710668Z","url":"https://osv.dev/vulnerability/GHSA-ggqx-43h2-55jp"}],"assessments":[{"source":"OSV","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","score":5.3}]}