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Vulnerability record · CVE-2026-72819 · published 14 August 2026

CVE-2026-72819: Code injection vulnerability

Grav CMS before 2.0.13 contains a remote code execution vulnerability in the Flex Objects plugin settings validation that allows authenticated users to execute arbitrary code by uploading a ZIP file containing PHP code. Attackers can bypass routine name validation by using array notation instead of string notation, call the unZip routine with a malicious archive, and write PHP files to the web root for execution.

8.7 CVSS 4.0 High EPSS 0.90% · top 41.9% CWE-94 · Code injection Deferred
8.7CVSS 4.0 base score
0.90%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
8 Sep 2026Last modified by NVD

Description

Grav CMS before 2.0.13 contains a remote code execution vulnerability in the Flex Objects plugin settings validation that allows authenticated users to execute arbitrary code by uploading a ZIP file containing PHP code. Attackers can bypass routine name validation by using array notation instead of string notation, call the unZip routine with a malicious archive, and write PHP files to the web root for execution.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/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/security/advisories/GHSA-r94f-hx44-8jqf
https://www.vulncheck.com/advisories/grav-cms-before-remote-code-execution-via-zip-upload
https://github.com/getgrav/grav/security/advisories/GHSA-r94f-hx44-8jqf

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Source: NIST National Vulnerability Database (record CVE-2026-72819), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.