CVE-2026-69089

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

8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

0.5% chance of exploitation in the next 30 days; higher than 39% of CVEs (scores of 2026-10-25)

CWE

CWE-22

Published

2026-08-03

Modified

2026-10-23

Record from

the NVD, synced 2026-10-24

References

• 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

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