PT-2026-85500

Grav Admin getgrav/grav-plugin-admin2 versions , ", or ', allowing an attacker to register a username containing an HTML payload. When an administrator views a UI surface that renders the username through tHtml—such as the two-factor force-disable confirmation prompt or the 'page is locked' edito...

PT-2026-85503

Grav versions before 1.10.55 contain a path traversal vulnerability in the admin plugin's Save As action that fails to validate the language code parameter. An authenticated admin user with admin.pages.create permission can supply directory traversal sequences in the lang POST field to write...

PT-2026-85504

Grav before 2.0.19 affected versions = 2.0.17 contains a remote code execution vulnerability in the Twig sort filter. The sortFunc wrapper in GravExtension.php hardcodes Twig's isSandboxed argument to false, so unlike |map/|filter/|reduce, |sort accepts a plain function name inside the sandbox; t...

PT-2026-85499

Grav Shortcode Core before 6.2.5 contains stored cross-site scripting vulnerabilities in the lorem tag parameter and details summary parameter that are written to rendered pages without escaping. Attackers with page-edit access can inject arbitrary HTML and JavaScript that executes in the browser...

CVE-2026-61690

creationtimestamp| type| source ---|---|--- 2026-09-02 22:35:08+00:00| published-proof-of-concept| https://github.com/getgrav/grav/security/advisories/GHSA-928x-9mpw-8h56...

CVE-2026-61842

creationtimestamp| type| source ---|---|--- 2026-09-02 22:35:05+00:00| published-proof-of-concept| https://github.com/getgrav/grav/security/advisories/GHSA-mc5q-6hpj-rp7j...

EUVD-2026-62540

Grav: 2FA Bypass via 'login.regenerate2FASecret' - Secret Rotation During Pending Challenge...

Grav: 2FA Bypass via 'login.regenerate2FASecret' - Secret Rotation During Pending Challenge

Summary When 2FA is enabled on an account, submitting correct credentials authenticates the user but leaves them unauthorized pending TOTP verification. During this pending-challenge window, the login.regenerate2FASecret task which requires only $user-exists, not $user-authorized can be called...

GHSA-7MGC-C7PQ-3RR3 Grav: 2FA Bypass via 'login.regenerate2FASecret' - Secret Rotation During Pending Challenge

Summary When 2FA is enabled on an account, submitting correct credentials authenticates the user but leaves them unauthorized pending TOTP verification. During this pending-challenge window, the login.regenerate2FASecret task which requires only $user-exists, not $user-authorized can be called...

Grav: Twig sandbox config exfiltration via grav.offsetGet + dump filter (CVE-2026-44738 bypass)

Summary The Twig content sandbox replaces config with the redacted SandboxConfig facade and strips Config::get/toArray from the method allowlist GHSA-j274-39qw-32c9, so editor content can't read config secrets via config. That's bypassable: grav is the raw container, offsetget is allow-listed on...

EUVD-2026-62535

Grav: Twig sandbox config exfiltration via grav.offsetGet + dump filter CVE-2026-44738 bypass...

GHSA-MC5Q-6HPJ-RP7J Grav: Twig sandbox config exfiltration via grav.offsetGet + dump filter (CVE-2026-44738 bypass)

Summary The Twig content sandbox replaces config with the redacted SandboxConfig facade and strips Config::get/toArray from the method allowlist GHSA-j274-39qw-32c9, so editor content can't read config secrets via config. That's bypassable: grav is the raw container, offsetget is allow-listed on...

EUVD-2026-62534

Grav: Decompression Bomb via ZipArchiver - Missing Extraction Limits...

Grav: Decompression Bomb via ZipArchiver - Missing Extraction Limits

Summary ZipArchiver::extract lacks limits on uncompressed size, file count, and nesting depth, creating a distinct, unpatched variant of the GHSA-2vcx-h8p2-9pg9 zip bomb vulnerability. While the parallel method Installer::unZip received comprehensive limits, ZipArchiver::extract remains...

GHSA-928X-9MPW-8H56 Grav: Decompression Bomb via ZipArchiver - Missing Extraction Limits

Summary ZipArchiver::extract lacks limits on uncompressed size, file count, and nesting depth, creating a distinct, unpatched variant of the GHSA-2vcx-h8p2-9pg9 zip bomb vulnerability. While the parallel method Installer::unZip received comprehensive limits, ZipArchiver::extract remains...

CVE-2026-64850

creationtimestamp| type| source ---|---|--- 2026-09-02 16:35:24+00:00| published-proof-of-concept| https://github.com/getgrav/grav/security/advisories/GHSA-fj2p-qj2f-74v5...

EUVD-2026-62549

Grav: Remote code execution via unrestricted callable in Blueprint::dynamicData...

GHSA-FJ2P-QJ2F-74V5 Grav: Remote code execution via unrestricted callable in Blueprint::dynamicData()

Summary An account with the admin.pages permission or api.pages.write can run shell commands on the server. The command executes whenever anyone — including an unauthenticated visitor — opens the page. Details Blueprint::dynamicData system/src/Grav/Common/Data/Blueprint.php:426 passes a...

Grav: Remote code execution via unrestricted callable in Blueprint::dynamicData()

Summary An account with the admin.pages permission or api.pages.write can run shell commands on the server. The command executes whenever anyone — including an unauthenticated visitor — opens the page. Details Blueprint::dynamicData system/src/Grav/Common/Data/Blueprint.php:426 passes a...

Grav: Authenticated ReDoS via regex_replace in Twig Sandbox

Summary The regexreplace filter and function are allowlisted in Grav's Twig content sandbox. When Twig processing in page content is enabled security.twigcontent.processenabled: true, authenticated page editors can supply a catastrophically backtracking PCRE pattern, causing unbounded CPU...