Image disclosure via unchecked watermark path traversal
Published Aug 3, 2026 · Updated Aug 3, 2026
Path traversal in ImageMedium::watermark() in GetGrav Grav 2.0.10 allows remote authenticated users to disclose server images. The method passes an unchecked watermark path to UniformResourceLocator::findResource(), whose file resolver collapses traversal segments without verifying containment. An editor with page-write access can embed a traversing watermark path, causing a readable image to be composited into a publicly cached derivative available to anonymous visitors.
Summary
What happened
Path traversal in ImageMedium::watermark() in GetGrav Grav 2.0.10 allows remote authenticated users to disclose server images. The method passes an unchecked watermark path to UniformResourceLocator::findResource(), whose file resolver collapses traversal segments without verifying containment. An editor with page-write access can embed a traversing watermark path, causing a readable image to be composited into a publicly cached derivative available to anonymous visitors.
The record
- CVE
- CVE-2026-69089
- Published
- Aug 3, 2026
- Updated
- Aug 3, 2026
- Vendor
- GetGrav
- Product
- Grav
- Classifications
- T1005
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 3, 2026CVE publishedPublication date reported by the CVE source.
- Aug 3, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <2.0.11
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Upstream watermark traversal proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo