Web Application Vulnerabilities Runtime SCA Findings
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Serendipity Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) Vu - CVE-2026-73628 - Vulnerability Database
Serendipity

Serendipity Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) Vu - CVE-2026-73628

Medium
Reference: CVE-2026-73628
NVD Link: https://nvd.nist.gov/vuln/detail/CVE-2026-73628
Title: Serendipity Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) Vu
Overview:

Serendipity versions 2.3.5 and 2.6.0 contain a reflected cross-site scripting vulnerability in the search clean-URL route (/search/term). In include/functions_routing.inc.php serveSearch() the sanitisation pipeline runs urldecode() after HTML-encoding so a single URL-encoded HTML payload survives strip_tags() and htmlspecialchars() and is then decoded back into live HTML in the page. A crafted search link can execute arbitrary JavaScript in the victims browser. Fixed in 2.6.1.