EUVD-2026-60591

Grav: Blueprint dynamic-data bare-function branch is denylist-gated and omits errorlog, giving arbitrary file write...

GHSA-VFMF-Q6X9-CW96 Grav: detectXss() misses an event-handler attribute after an unpaired quote in an unquoted attribute value, giving stored XSS

Affected versions and vulnerable location - Confirmed on grav core at 78ebfc1 tag 2.0.13. - Detector: system/src/Grav/Common/Security.php:290, the onevents regex, run via patternMatches :315-330. - The onevents pattern at HEAD: "'??:\s\x00-\x20"'/|"^""|'^''on\sa-z+\s=iu - Sole save-time guard for...

Grav: detectXss() misses an event-handler attribute after an unpaired quote in an unquoted attribute value, giving stored XSS

Affected versions and vulnerable location - Confirmed on grav core at 78ebfc1 tag 2.0.13. - Detector: system/src/Grav/Common/Security.php:290, the onevents regex, run via patternMatches :315-330. - The onevents pattern at HEAD: "'??:\s\x00-\x20"'/|"^""|'^''on\sa-z+\s=iu - Sole save-time guard for...

CVE-2026-93395 Integer Underflow → Heap Out-of-Bounds Read in `bson_new_from_buffer()

A missing lower-bound validation in the bsonnewfrombuffer function of libbson allows an integer underflow when processing BSON data with a zero-length prefix. The function reads a 32-bit document length from the input buffer but does not verify that the value is at least 5 the minimum valid BSON...

CVE-2026-93395

A missing lower-bound validation in the bsonnewfrombuffer function of libbson allows an integer underflow when processing BSON data with a zero-length prefix. The function reads a 32-bit document length from the input buffer but does not verify that the value is at least 5 the minimum valid BSON...

Integer Underflow → Heap Out-of-Bounds Read in `bson_new_from_buffer()

A missing lower-bound validation in the bsonnewfrombuffer function of libbson allows an integer underflow when processing BSON data with a zero-length prefix. The function reads a 32-bit document length from the input buffer but does not verify that the value is at least 5 the minimum valid BSON...

CVE-2026-93395

CVE-2026-93395 is an integer underflow in the bson_new_from_buffer() function of libbson (the MongoDB C driver's BSON library). The function reads a 32-bit document length from input but fails to verify it is at least 5 (the minimum valid BSON document size). When the length field is zero , the e...

EUVD-2026-82471

A missing lower-bound validation in the bsonnewfrombuffer function of libbson allows an integer underflow when processing BSON data with a zero-length prefix. The function reads a 32-bit document length from the input buffer but does not verify that the value is at least 5 the minimum valid BSON...

GHSA-JQ29-C7V8-RG55 Grav: Path Traversal in MediaUploadTrait::deleteFile() Allows Arbitrary File Deletion

Path Traversal in MediaUploadTrait::deleteFile Allows Arbitrary File Deletion Summary A path traversal vulnerability in MediaUploadTrait::deleteFile allows an authenticated user with media management permissions to delete arbitrary files on the server. The method validates only the basename porti...

Grav: Path Traversal in MediaUploadTrait::deleteFile() Allows Arbitrary File Deletion

Path Traversal in MediaUploadTrait::deleteFile Allows Arbitrary File Deletion Summary A path traversal vulnerability in MediaUploadTrait::deleteFile allows an authenticated user with media management permissions to delete arbitrary files on the server. The method validates only the basename porti...

GHSA-9395-2G46-RJ3F djust: Six template-layer defects emit attacker-controlled markup unescaped (XSS)

Five independent defects in djust's template auto-escaping cause attacker-controlled input to be rendered as live markup where Django escapes it. All four are present in shipped 1.1.0 and are fixed in 1.1.1. They share one shape: a filter or grant that escapes nothing itself and relies on the...

djust: Six template-layer defects emit attacker-controlled markup unescaped (XSS)

Five independent defects in djust's template auto-escaping cause attacker-controlled input to be rendered as live markup where Django escapes it. All four are present in shipped 1.1.0 and are fixed in 1.1.1. They share one shape: a filter or grant that escapes nothing itself and relies on the...

Insertion of Sensitive Information into Log File

Overview Affected versions of this package are vulnerable to Insertion of Sensitive Information into Log File via the logrequest function in jupyterserver/log.py, which logs the full Referer header value without sanitization. When a request causes a 500 error, the Referer header - which may conta...

EUVD-2026-65211

Grav: mediadirectory Twig function allows filesystem path traversal and file content disclosure from sandboxed page content...

GHSA-47CH-6W46-6XM7 Grav: media_directory() Twig function allows filesystem path traversal and file content disclosure from sandboxed page content

Summary The mediadirectory Twig function is allow-listed for use in sandboxed, editor-authored page content system/config/security.yaml. Its implementation, GravExtension::mediaDirFunc, only treats the input as unsafe when it looks like a Grav stream user://, theme://, etc. If the input is instea...

Grav: media_directory() Twig function allows filesystem path traversal and file content disclosure from sandboxed page content

Summary The mediadirectory Twig function is allow-listed for use in sandboxed, editor-authored page content system/config/security.yaml. Its implementation, GravExtension::mediaDirFunc, only treats the input as unsafe when it looks like a Grav stream user://, theme://, etc. If the input is instea...

GHSA-3JHR-MXMX-38CX Grav: UserInterface offsetget/offsetexists allow-listed in Twig sandbox let editor-authored content leak hashed_password and 2FA secrets via offsetGet()

Summary system/config/security.yaml's Twig sandbox policy allow-lists offsetget and offsetexists for Grav\Common\User\Interfaces\UserInterface. The concrete Grav\Common\User\DataUser\User class does not filter which fields offsetGet returns, so any sandboxed template with access to a User object...

Grav: UserInterface offsetget/offsetexists allow-listed in Twig sandbox let editor-authored content leak hashed_password and 2FA secrets via offsetGet()

Summary system/config/security.yaml's Twig sandbox policy allow-lists offsetget and offsetexists for Grav\Common\User\Interfaces\UserInterface. The concrete Grav\Common\User\DataUser\User class does not filter which fields offsetGet returns, so any sandboxed template with access to a User object...

GHSA-P597-CRQC-M349 Grav: The system, site, and theme Twig variables bypass the content sandbox entirely and are never covered by config_denied_paths

Summary Grav\Common\Twig\Twig::init unconditionally puts the raw system, site, and theme config arrays into $this-twigvars. Twig::processPage builds the variables for the sandboxed, editor-authored page-content render by copying that same base array $sandboxvars = $twigvars; and replacing only th...

Grav: The system, site, and theme Twig variables bypass the content sandbox entirely and are never covered by config_denied_paths

Summary Grav\Common\Twig\Twig::init unconditionally puts the raw system, site, and theme config arrays into $this-twigvars. Twig::processPage builds the variables for the sandboxed, editor-authored page-content render by copying that same base array $sandboxvars = $twigvars; and replacing only th...