Cross-site Scripting (XSS)

Overview getgrav/grav is a Modern, Crazy Fast, Ridiculously Easy and Amazingly Powerful Flat-File CMS. Affected versions of this package are vulnerable to Cross-site Scripting XSS in the detectXss function. An attacker can execute arbitrary JavaScript in the context of site visitors by injecting...

Duplicate Advisory: Remote code execution via .zip file upload in Grav CMS

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-r94f-hx44-8jqf. This link is maintained to preserve external references. Original Description Grav CMS before 2.0.13 contains a remote code execution vulnerability in the Flex Objects plugin settings validation...

CVE-2026-72831

The Flex Objects plugin through 1.4.6, tested with Grav 2.0.11 contains an incorrect authorization vulnerability in its Flex Objects API. FlexApiController::update checks only the general Flex directory permission and does not apply the additional target/field/super-admin checks enforced by the...

CVE-2026-72832

Grav versions from 1.5.2 through 2.0.12 contain a stored cross-site scripting vulnerability in the Security::detectXss function system/src/Grav/Common/Security.php. The event-handler scan is anchored at ?, which cannot cross the first literal ; when a appears inside a quoted attribute value the...

CVE-2026-72827

Grav CMS before 2.0.13 contains a server-side template injection vulnerability in email-action parameters that allows low-privileged page editors to execute arbitrary operating-system commands. Attackers can inject Twig payloads using the unsandboxed find filter in email subject, body, to, or fro...

CVE-2026-72819

Grav CMS before 2.0.13 contains a remote code execution vulnerability in the Flex Objects plugin settings validation that allows authenticated users to execute arbitrary code by uploading a ZIP file containing PHP code. Attackers can bypass routine name validation by using array notation instead ...

CVE-2026-72832

Grav versions from 1.5.2 through 2.0.12 contain a stored cross-site scripting vulnerability in the Security::detectXss function system/src/Grav/Common/Security.php. The event-handler scan is anchored at ?, which cannot cross the first literal ; when a appears inside a quoted attribute value the...

CVE-2026-72832

Grav before 2.0.13 (versions 1.5.2–2.0.12) contains a stored XSS in Security::detectXss() (system/src/Grav/Common/Security.php). The event-handler detector uses a pattern anchored at “]*?, which fails when a > appears inside a quoted attribute value, allowing a payload such as ” onerror=alert(...

CVE-2026-72831

The Flex Objects plugin through 1.4.6, tested with Grav 2.0.11 contains an incorrect authorization vulnerability in its Flex Objects API. FlexApiController::update checks only the general Flex directory permission and does not apply the additional target/field/super-admin checks enforced by the...

EUVD-2026-58645

The Flex Objects plugin through 1.4.6, tested with Grav 2.0.11 contains an incorrect authorization vulnerability in its Flex Objects API. FlexApiController::update checks only the general Flex directory permission and does not apply the additional target/field/super-admin checks enforced by the...

CVE-2026-72831 Grav through 2.0.11 Authentication Bypass via Flex Objects

The Flex Objects plugin through 1.4.6, tested with Grav 2.0.11 contains an incorrect authorization vulnerability in its Flex Objects API. FlexApiController::update checks only the general Flex directory permission and does not apply the additional target/field/super-admin checks enforced by the...

EUVD-2026-58641

Grav CMS before 2.0.13 contains a server-side template injection vulnerability in email-action parameters that allows low-privileged page editors to execute arbitrary operating-system commands. Attackers can inject Twig payloads using the unsandboxed find filter in email subject, body, to, or fro...

CVE-2026-72827

Grav CMS before 2.0.13 contains a server-side template injection vulnerability in email-action parameters that allows low-privileged page editors to execute arbitrary operating-system commands. Attackers can inject Twig payloads using the unsandboxed find filter in email subject, body, to, or fro...

CVE-2026-72827

Grav CMS before 2.0.13 contains a server-side template injection vulnerability in email-action parameters that allows low-privileged page editors to execute arbitrary operating-system commands. Attackers can inject Twig payloads using the unsandboxed find filter in email subject, body, to, or fro...

CVE-2026-72827 Grav CMS before 2.0.13 Remote Code Execution via Twig

Grav CMS before 2.0.13 contains a server-side template injection vulnerability in email-action parameters that allows low-privileged page editors to execute arbitrary operating-system commands. Attackers can inject Twig payloads using the unsandboxed find filter in email subject, body, to, or fro...

CVE-2026-72827 Grav CMS before 2.0.13 Remote Code Execution via Twig

Grav CMS before 2.0.13 contains a server-side template injection vulnerability in email-action parameters that allows low-privileged page editors to execute arbitrary operating-system commands. Attackers can inject Twig payloads using the unsandboxed find filter in email subject, body, to, or fro...

CVE-2026-72824

CVE-2026-72824 affects the Grav API plugin (getgrav/grav-plugin-api) before 1.0.13 . The root cause is an API key scope-cap bypass in PagesController::guardTwigContent(): the Twig-toggle check relies on a bare isSuperAdmin() gate without consulting api_key_scopes. A least-privilege API key scoped...

CVE-2026-72820

Grav versions before 2.0.13 fail to properly validate backup profile root paths, allowing attackers to archive directories outside GRAVROOT when not in the hard-coded deny-list. Attackers with profile editor access can configure backup profiles with traversal paths to expose sensitive files from...

CVE-2026-72820

Grav prior to 2.0.13 is vulnerable to a backup profile path traversal issue. The root-path validation fails when a hard-coded deny-list is not applied, allowing attackers who have profile editor access to configure backup profiles with traversal paths that can archive or expose files from outside...

CVE-2026-72820 Grav 2.0.11 Path Traversal via Backup Profile Configuration

Grav versions before 2.0.13 fail to properly validate backup profile root paths, allowing attackers to archive directories outside GRAVROOT when not in the hard-coded deny-list. Attackers with profile editor access can configure backup profiles with traversal paths to expose sensitive files from...