CVE-2026-69089
CVE-2026-69089 · Grav CMS before 2.0.11 Path Traversal via watermark
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Grav CMS 2.0.10 contains a path traversal vulnerability in ImageMedium::watermark(), which passes its unsanitized $image argument to RocketTheme\Toolbox\ResourceLocator\UniformResourceLocator::findResource(). Because the file:// scheme branch only lexically collapses '..' segments without a realpath/containment check, an editor authoring Markdown image syntax with traversal sequences can cause arbitrary image files outside Grav's media sandbox to be composited into a carrier image, which is then cached and served from a public, unauthenticated URL — disclosing those files to anonymous visitors.
CVSS 8.7 · Hoch · EPSS 0,5% · Korrektur verfügbar
- Veröffentlicht
- Aktualisiert
Technologie-Stack: php
Betroffene Produkte und Versionen
grav
- Softwareversionen
- ≥ 0, < 2.0.11: Betroffen (semver)
- 2.0.11: Nicht betroffen (semver)
Auf 2.0.11 aktualisieren
getgrav/grav Packagist
- Softwareversionen
- 2.0.10
- Betroffene Versionsbereiche
- ECOSYSTEM: ≥ 2.0.10, < 2.0.11
Auf 2.0.11 aktualisieren
Originalquellen
- https://github.com/getgrav/grav/security/advisories/GHSA-w3f4-8pj2-599w
- https://github.com/getgrav/grav/commit/db8c1fcd63aaaf6d6b244bc6b4cfa5f7b96bbc7f
- https://github.com/getgrav/grav/commit/c569a53304cd7d95ff21bffa6fc590adcf0be83d
- https://github.com/getgrav/grav/commit/b282200a65ce979377963180629babd2335212ba
- https://www.vulncheck.com/advisories/grav-cms-before-path-traversal-via-watermark
- https://nvd.nist.gov/vuln/detail/CVE-2026-69089