High severity · published Aug 14, 2026
CVE-2026-72819
Grav CMS before 2.0.13 Remote Code Execution via ZIP Upload
8.8
CVSS
0.9%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 60% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GR
grav · getgrav
before 2.0.13 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-72819
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-72819
vendor-advisory
https://github.com/getgrav/grav/security/advisories/GHSA-r94f-hx44-8jqf
third-party-advisory
https://www.vulncheck.com/advisories/grav-cms-before-remote-code-execution-via-zip-upload
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