Vulnerability in Getgrav Grav
CVE-2026-75830
grav-plugin-api (getgrav/grav-plugin-api) versions >= 1.0.0-beta.10 and <= 1.0.14 contain a path traversal vulnerability in the PagesController::batchCopy() method. An incomplete fix for GHSA-qjq4-jp55-4mx2 left the user-controlled 'suffix' parameter (via POST /api/v1/pages/batch) unvalidated. An authenticated user with the api.pages.write permission (editor-level, not super-admin) can supply path traversal sequences (e.g. /../../../) in the suffix parameter to escape the intended user/pages/ directory and write attacker-controlled page content and page media to arbitrary filesystem locations writable by the web server process. The vulnerability is fixed in 1.0.15.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L.
EPSS exploit prediction
EPSS: 0.004 (31.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001
Affected products
Weakness classification (CWE)
References
- github.com/getgrav/grav/security/advisories/GHSA-g6j3-8jv9-ch5f (vendor-advisory)
- www.vulncheck.com/advisories/grav-plugin-api-before-path-traversal-via-batchcopy (third-party-advisory)
Frequently asked questions
- What is CVE-2026-75830?
- CVE-2026-75830 is a high-severity vulnerability in Getgrav Grav, classified under External Control of File Name or Path. CVSS score: 7.1/10. Published 2026-08-18.
- How severe is CVE-2026-75830?
- High severity. CVSS v3 base score is 7.1 out of 10.