CVE-2026-61455 Grav before 2.0.1 Decompression Bomb via ZipArchiver

Grav before 2.0.1 contains a decompression bomb vulnerability in ZipArchiver::extract that lacks limits on uncompressed size, file count, and nesting depth. Attackers can supply a crafted ZIP archive that expands to fill available disk space, causing denial of service by exhausting storage...

CVE-2026-61455 Grav before 2.0.1 Decompression Bomb via ZipArchiver

Grav before 2.0.1 contains a decompression bomb vulnerability in ZipArchiver::extract that lacks limits on uncompressed size, file count, and nesting depth. Attackers can supply a crafted ZIP archive that expands to fill available disk space, causing denial of service by exhausting storage...

CVE-2026-61450

Grav prior to 2.0.2 contains a Twig sandbox bypass that enables a page author (including any admin.pages user or anyone with write access to user/pages) to exfiltrate configuration secrets. The sandbox replaces the config variable with a redacted facade and strips Config::get/toArray from the all...

EUVD-2026-42904

Grav before 2.0.1 contains a decompression bomb vulnerability in ZipArchiver::extract that lacks limits on uncompressed size, file count, and nesting depth. Attackers can supply a crafted ZIP archive that expands to fill available disk space, causing denial of service by exhausting storage...

EUVD-2026-42903

Grav before 2.0.2 contains a Twig sandbox bypass that allows a page author any admin.pages user, or anyone able to write to user/pages to exfiltrate configuration secrets. Although the sandbox replaces the 'config' variable with a redacted facade and strips Config::get/toArray from the method...

CVE-2026-61450 Grav before 2.0.2 Config Exfiltration via offsetGet Filter

Grav before 2.0.2 contains a Twig sandbox bypass that allows a page author any admin.pages user, or anyone able to write to user/pages to exfiltrate configuration secrets. Although the sandbox replaces the 'config' variable with a redacted facade and strips Config::get/toArray from the method...

CVE-2026-61455 Grav before 2.0.1 Decompression Bomb via ZipArchiver

Grav before 2.0.1 contains a decompression bomb vulnerability in ZipArchiver::extract that lacks limits on uncompressed size, file count, and nesting depth. Attackers can supply a crafted ZIP archive that expands to fill available disk space, causing denial of service by exhausting storage...

CVE-2026-61455

Grav before 2.0.1 contains a decompression bomb vulnerability in ZipArchiver::extract() that lacks limits on uncompressed size, file count, and nesting depth. A crafted ZIP archive can expand to fill available disk space, causing denial of service by exhausting storage resources. This CVE (CVE-20...

CVE-2026-61450 Grav before 2.0.2 Config Exfiltration via offsetGet Filter

Grav before 2.0.2 contains a Twig sandbox bypass that allows a page author any admin.pages user, or anyone able to write to user/pages to exfiltrate configuration secrets. Although the sandbox replaces the 'config' variable with a redacted facade and strips Config::get/toArray from the method...

CVE-2026-58492: Improper Neutralization of Special Elements used in an SQL Command

grav-plugin-database is the database plugin for Grav CMS. Prior to 1.2.0, the PDO::tableExists method interpolates its table argument directly into a raw SQL query string without sanitization, escaping, quoting, or whitelisting, allowing attacker-controlled table names passed by consuming plugin ...

PT-2026-57199

The Grav API plugin getgrav/grav-plugin-api before 1.0.3 fails to sanitize SVG files uploaded through the POST /api/v1/media endpoint. The HandlesMediaUploads::processUploadedFile method validates only the file extension and never invokes Security::sanitizeSVG, so an authenticated attacker with t...

PT-2026-57198

Name of the Vulnerable Software and Affected Versions Grav versions prior to 2.0.1 Description A decompression bomb issue exists in the ZipArchiver::extract function. The function does not impose limits on the number of files, nesting depth, or the total uncompressed size of archives. An attacker...

CVE-2026-55885: Cleartext Storage of Sensitive Information

Grav is a file-based Web platform. Prior to 1.7.53, an authenticated administrator with backup permissions can download a ZIP archive containing the full Grav installation root, including user/accounts/admin.yaml with the administrator password hash and user/config with site configuration, throug...

PT-2026-57241

Name of the Vulnerable Software and Affected Versions Grav versions prior to 2.0.0 Description An authenticated user with admin.super privileges can cause a system crash or exhaust disk space by uploading a specially crafted ZIP archive via the Direct Install tool. This occurs because the...

CVE-2026-59190: Authorization Bypass Through User-Controlled Key

grav-plugin-admin is an HTML user interface that provides a way to configure Grav and create and modify pages. In 1.10.52 and earlier, an authenticated attacker with admin.users permission can change the password of any user account, including the super administrator, by sending a direct POST...

PT-2026-57224

grav-plugin-database is the database plugin for Grav CMS. Prior to 1.2.0, Database:: call builds PDO DSN strings by directly concatenating user-configurable YAML values from fields such as host, dbname, charset, server, database, directory, and filename without sanitization or validation, allowin...

CVE-2026-55890: Improper Neutralization of Input During Web Page Generation

Grav is a file-based Web platform. Prior to 2.0.0-rc.9, Grav's incomplete fix for stored XSS through the Markdown media attribute action CVE-2026-42841 leaves the sibling MediaObjectTrait::style method reachable through the same Markdown excerpt-action pipeline, allowing an editor to save Markdow...

CVE-2026-61455: Improper Handling of Highly Compressed Data (Data Amplification)

Grav before 2.0.1 contains a decompression bomb vulnerability in ZipArchiver::extract that lacks limits on uncompressed size, file count, and nesting depth. Attackers can supply a crafted ZIP archive that expands to fill available disk space, causing denial of service by exhausting storage...

CVE-2026-61450: Improper Control of Generation of Code

Grav before 2.0.2 contains a Twig sandbox bypass that allows a page author any admin.pages user, or anyone able to write to user/pages to exfiltrate configuration secrets. Although the sandbox replaces the 'config' variable with a redacted facade and strips Config::get/toArray from the method...

CVE-2026-59193: Improper Handling of Highly Compressed Data (Data Amplification)

Grav is a file-based Web platform. Prior to 2.0.0, an authenticated admin.super user can crash Grav or fill the disk by uploading a specially crafted ZIP archive through the Direct Install tool because Installer::unZip calls ZipArchive::extractTo without limits on uncompressed size, entry count, ...