What is CVE-2026-61873?

CVE-2026-61873 is a high-severity vulnerability in Getgrav Grav, classified under External Control of File Name or Path. CVSS score: 8.1/10. Published 2026-07-15.

How severe is CVE-2026-61873?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in Getgrav Grav

CVE-2026-61873

Grav before 9.1.8 contains an arbitrary file write vulnerability in the Form plugin's process.save.filename parameter, which is validated against path traversal before Twig processing but never re-validated after rendering. Attackers can s…

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H.

Affected products

Getgrav Grav — versions 0, 9.1.8

Weakness classification (CWE)

CWE-73 — External Control of File Name or Path

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-61873?: CVE-2026-61873 is a high-severity vulnerability in Getgrav Grav, classified under External Control of File Name or Path. CVSS score: 8.1/10. Published 2026-07-15.
How severe is CVE-2026-61873?: High severity. CVSS v3 base score is 8.1 out of 10.