CVE-2026-73628

Serendipity versions = 2.3.5 and . In include/functionsrouting.inc.php serveSearch, the sanitisation pipeline runs urldecode after HTML-encoding, so a single URL-encoded HTML payload survives striptags and htmlspecialchars and is then decoded back into live HTML in the page. A crafted search link...

CVE-2026-73629

Serendipity before 2.6.0 contains a server-side request forgery vulnerability in the serendipityurlallowed filter that fails to block hex-encoded IPv4 addresses, IPv6 literals, and link-local ranges. Authenticated users with adminImagesAdd permission can bypass the filter using alternate address...

CVE-2026-73628

Serendipity versions = 2.3.5 and . In include/functionsrouting.inc.php serveSearch, the sanitisation pipeline runs urldecode after HTML-encoding, so a single URL-encoded HTML payload survives striptags and htmlspecialchars and is then decoded back into live HTML in the page. A crafted search link...

CVE-2026-73629

Serendipity before 2.6.0 contains a server-side request forgery vulnerability in the serendipityurlallowed filter that fails to block hex-encoded IPv4 addresses, IPv6 literals, and link-local ranges. Authenticated users with adminImagesAdd permission can bypass the filter using alternate address...

CVE-2026-73629 Serendipity before 2.6.0 SSRF via hex IPv4 and IPv6 addresses

Serendipity before 2.6.0 contains a server-side request forgery vulnerability in the serendipityurlallowed filter that fails to block hex-encoded IPv4 addresses, IPv6 literals, and link-local ranges. Authenticated users with adminImagesAdd permission can bypass the filter using alternate address...

CVE-2026-73629 Serendipity before 2.6.0 SSRF via hex IPv4 and IPv6 addresses

Serendipity before 2.6.0 contains a server-side request forgery vulnerability in the serendipityurlallowed filter that fails to block hex-encoded IPv4 addresses, IPv6 literals, and link-local ranges. Authenticated users with adminImagesAdd permission can bypass the filter using alternate address...

EUVD-2026-57798

Serendipity before 2.6.0 contains a server-side request forgery vulnerability in the serendipityurlallowed filter that fails to block hex-encoded IPv4 addresses, IPv6 literals, and link-local ranges. Authenticated users with adminImagesAdd permission can bypass the filter using alternate address...

CVE-2026-73629

CVE-2026-73629 affects Serendipity before 2.6.0. The issue is a server-side request forgery in the serendipity_url_allowed() filter that fails to block hex-encoded IPv4 addresses, IPv6 literals, and link-local ranges. Authenticated users with adminImagesAdd permission can bypass the filter using ...

CVE-2026-73628

The CVE-2026-73628 entry concerns Serendipity versions 2.3.5 through 2.6.0, which contain a reflected XSS in the search clean-URL route (/search/). In include/functions_routing.inc.php, the serveSearch() sanitisation sequence applies urldecode() after HTML-encoding, allowing a URL-encoded HTML pa...

EUVD-2026-57797

Serendipity versions = 2.3.5 and . In include/functionsrouting.inc.php serveSearch, the sanitisation pipeline runs urldecode after HTML-encoding, so a single URL-encoded HTML payload survives striptags and htmlspecialchars and is then decoded back into live HTML in the page. A crafted search link...

CVE-2026-73628 Serendipity 2.3.5 Reflected XSS via search clean-URL route

Serendipity versions = 2.3.5 and . In include/functionsrouting.inc.php serveSearch, the sanitisation pipeline runs urldecode after HTML-encoding, so a single URL-encoded HTML payload survives striptags and htmlspecialchars and is then decoded back into live HTML in the page. A crafted search link...

PT-2026-71456

Serendipity versions = 2.3.5 and . 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 li...

CVE-2026-67350

Serendipity before 2.6.1 contains an open redirect vulnerability in exit.php that allows unauthenticated attackers to redirect users to arbitrary external sites by supplying a malicious Base64-encoded url parameter when the Track Exits plugin is configured with commentredirection set to s9y...

CVE-2026-67350 Serendipity < 2.6.1 Open Redirect via exit.php

Serendipity before 2.6.1 contains an open redirect vulnerability in exit.php that allows unauthenticated attackers to redirect users to arbitrary external sites by supplying a malicious Base64-encoded url parameter when the Track Exits plugin is configured with commentredirection set to s9y...

CVE-2026-67350

Serendipity

CVE-2026-67350

Serendipity before 2.6.1 contains an open redirect vulnerability in exit.php that allows unauthenticated attackers to redirect users to arbitrary external sites by supplying a malicious Base64-encoded url parameter when the Track Exits plugin is configured with commentredirection set to s9y...

EUVD-2026-51552

Serendipity before 2.6.1 contains an open redirect vulnerability in exit.php that allows unauthenticated attackers to redirect users to arbitrary external sites by supplying a malicious Base64-encoded url parameter when the Track Exits plugin is configured with commentredirection set to s9y...

CVE-2026-67351

Serendipity before 2.6.1 contains an authentication context confusion vulnerability where password validation and session loading operate independently without ensuring both use the same user record. An authenticated Editor can create a username collision with an Administrator account and obtain...

CVE-2026-67351

Serendipity before 2.6.1 contains an authentication context confusion vulnerability where password validation and session loading operate independently without ensuring both use the same user record. An authenticated Editor can create a username collision with an Administrator account and obtain...

CVE-2026-67351 Serendipity < 2.6.1 Authentication Bypass via Username Collision

Serendipity before 2.6.1 contains an authentication context confusion vulnerability where password validation and session loading operate independently without ensuring both use the same user record. An authenticated Editor can create a username collision with an Administrator account and obtain...