GHSA-QH7H-6C7G-X8M6 Duplicate Advisory: Grav: Origin validation bypass in Uri::referrer() and Pages::referrerRoute() via unanchored prefix match

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-9ccq-2jfg-qw33. This link is maintained to preserve external references. Original Description Grav CMS before 2.0.16 contains an origin validation bypass in the Uri::referrer and Pages::referrerRoute methods,...

Duplicate Advisory: Grav: Origin validation bypass in Uri::referrer() and Pages::referrerRoute() via unanchored prefix match

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-9ccq-2jfg-qw33. This link is maintained to preserve external references. Original Description Grav CMS before 2.0.16 contains an origin validation bypass in the Uri::referrer and Pages::referrerRoute methods,...

CVE-2026-72702

Grav CMS before 2.0.16 contains an origin validation bypass in the Uri::referrer and Pages::referrerRoute methods, which validate the Referer header using an unanchored string prefix match strstartswith$referrer, $base with no trailing delimiter. An attacker who controls a domain that begins with...

CVE-2026-72702 Grav CMS before 2.0.16 Origin Validation Bypass via Referer

Grav CMS before 2.0.16 contains an origin validation bypass in the Uri::referrer and Pages::referrerRoute methods, which validate the Referer header using an unanchored string prefix match strstartswith$referrer, $base with no trailing delimiter. An attacker who controls a domain that begins with...

CVE-2026-72702

Grav CMS versions before 2.0.16 contain an origin validation bypass in the Uri::referrer() and Pages::referrerRoute() methods. The root cause is an unanchored string prefix match (str_starts_with($referrer, $base)) with no trailing delimiter, meaning an attacker who controls a domain that begins ...

CVE-2026-72702 Grav CMS before 2.0.16 Origin Validation Bypass via Referer

Grav CMS before 2.0.16 contains an origin validation bypass in the Uri::referrer and Pages::referrerRoute methods, which validate the Referer header using an unanchored string prefix match strstartswith$referrer, $base with no trailing delimiter. An attacker who controls a domain that begins with...

CVE-2026-72702

Grav CMS before 2.0.16 contains an origin validation bypass in the Uri::referrer and Pages::referrerRoute methods, which validate the Referer header using an unanchored string prefix match strstartswith$referrer, $base with no trailing delimiter. An attacker who controls a domain that begins with...

CVE-2026-72702 Grav CMS before 2.0.16 Origin Validation Bypass via Referer

Grav CMS before 2.0.16 contains an origin validation bypass in the Uri::referrer and Pages::referrerRoute methods, which validate the Referer header using an unanchored string prefix match strstartswith$referrer, $base with no trailing delimiter. An attacker who controls a domain that begins with...

PT-2026-81145

Name of the Vulnerable Software and Affected Versions Grav CMS versions prior to 2.0.16 Description An origin validation bypass exists in the Uri::referrer and Pages::referrerRoute methods. The issue occurs because the Referer header is validated using an unanchored string prefix match via str...

CVE-2026-72702: Origin Validation Error

Grav CMS before 2.0.16 contains an origin validation bypass in the Uri::referrer and Pages::referrerRoute methods, which validate the Referer header using an unanchored string prefix match strstartswith$referrer, $base with no trailing delimiter. An attacker who controls a domain that begins with...

GHSA-5H77-88J3-R659 YOURLS has stored XSS in referrer statistics chart via crafted Referer header

Summary YOURLS stores the HTTP Referer header for short URL redirects and later renders aggregated referrer domains in the per-link statistics page. An unauthenticated attacker can send a crafted Referer header to any existing short URL. When an authenticated administrator or stats-page viewer...

YOURLS has stored XSS in referrer statistics chart via crafted Referer header

Summary YOURLS stores the HTTP Referer header for short URL redirects and later renders aggregated referrer domains in the per-link statistics page. An unauthenticated attacker can send a crafted Referer header to any existing short URL. When an authenticated administrator or stats-page viewer...

Cross-site Scripting (XSS)

Overview yourls/yourls is an is a set of PHP scripts that allow you to run Your Own URL Shortener. Affected versions of this package are vulnerable to Cross-site Scripting XSS in the processing of HTTP Referer headers in statistics chart rendering. An attacker can execute arbitrary JavaScript in...

CVE-2026-63135 YOURLS: Stored XSS in referrer statistics chart via crafted Referer header

YOURLS is a self-hosted, customizable URL shortener written in PHP. From 1.5.1 until 1.10.4, YOURLS stores the HTTP Referer header through yourlsgetreferrer, yourlssanitizeurlsafe, and yourlslogredirect, then aggregates the value in yourls-infos.php and passes the derived domain through...

CVE-2026-63135 YOURLS: Stored XSS in referrer statistics chart via crafted Referer header

YOURLS is a self-hosted, customizable URL shortener written in PHP. From 1.5.1 until 1.10.4, YOURLS stores the HTTP Referer header through yourlsgetreferrer, yourlssanitizeurlsafe, and yourlslogredirect, then aggregates the value in yourls-infos.php and passes the derived domain through...

CVE-2026-63135

YOURLS is a self-hosted, customizable URL shortener written in PHP. From 1.5.1 until 1.10.4, YOURLS stores the HTTP Referer header through yourlsgetreferrer, yourlssanitizeurlsafe, and yourlslogredirect, then aggregates the value in yourls-infos.php and passes the derived domain through...

CVE-2026-63135

YOURLS (self-hosted PHP URL shortener) versions 1.5.1 through 1.10.4 are affected by a stored cross-site scripting (XSS) vulnerability in the referrer statistics chart. The root cause is that the chart builder concatenates referrer-derived domain labels into inline JavaScript without proper strin...

CVE-2026-63135 YOURLS: Stored XSS in referrer statistics chart via crafted Referer header

YOURLS is a self-hosted, customizable URL shortener written in PHP. From 1.5.1 until 1.10.4, YOURLS stores the HTTP Referer header through yourlsgetreferrer, yourlssanitizeurlsafe, and yourlslogredirect, then aggregates the value in yourls-infos.php and passes the derived domain through...

CVE-2026-63135: Improper Neutralization of Input During Web Page Generation

YOURLS is a self-hosted, customizable URL shortener written in PHP. From 1.5.1 until 1.10.4, YOURLS stores the HTTP Referer header through yourlsgetreferrer, yourlssanitizeurlsafe, and yourlslogredirect, then aggregates the value in yourls-infos.php and passes the derived domain through...

PT-2026-80226

Summary YOURLS stores the HTTP Referer header for short URL redirects and later renders aggregated referrer domains in the per-link statistics page. An unauthenticated attacker can send a crafted Referer header to any existing short URL. When an authenticated administrator or stats-page viewer...