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Vulnerability record · CVE-2026-69089 · published 3 August 2026

CVE-2026-69089: Path traversal vulnerability

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.

8.7 CVSS 4.0 High EPSS 0.55% · top 56.4% CWE-22 · Path traversal Deferred
8.7CVSS 4.0 base score
0.55%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
6References
31 Aug 2026Last modified by NVD

Description

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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/getgrav/grav/commit/b282200a65ce979377963180629babd2335212ba
https://github.com/getgrav/grav/commit/c569a53304cd7d95ff21bffa6fc590adcf0be83d
https://github.com/getgrav/grav/commit/db8c1fcd63aaaf6d6b244bc6b4cfa5f7b96bbc7f
https://github.com/getgrav/grav/security/advisories/GHSA-w3f4-8pj2-599w
https://www.vulncheck.com/advisories/grav-cms-before-path-traversal-via-watermark
https://github.com/getgrav/grav/security/advisories/GHSA-w3f4-8pj2-599w

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Source: NIST National Vulnerability Database (record CVE-2026-69089), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.