CVE-2026-65608Public exploitNetwork attack vector

Authenticated code execution via unsafe Flex callables

Published Jul 23, 2026 · Updated Jul 23, 2026

Remote code execution in Grav 1.7.0 through 2.0.8 allows remote authenticated users to run shell commands through Flex writes. FlexDirectory::dynamicDataField() passes attacker-influenced data-*@ callable names and arguments to call_user_func_array() after checking only is_callable(), so command functions remain permitted. Create or update permission on one active Flex directory is sufficient; commands execute with the web-server account's privileges.

CVSS severity8.7
High
EPSS probability0.85%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Remote code execution in Grav 1.7.0 through 2.0.8 allows remote authenticated users to run shell commands through Flex writes. FlexDirectory::dynamicDataField() passes attacker-influenced data-*@ callable names and arguments to call_user_func_array() after checking only is_callable(), so command functions remain permitted. Create or update permission on one active Flex directory is sufficient; commands execute with the web-server account's privileges.

The record

CVE
CVE-2026-65608
Published
Jul 23, 2026
Updated
Jul 23, 2026
Vendor
Grav
Product
Grav
Classifications
CWE-470, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.7.0 <2.0.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Grav · Gravversion=1.7.0 <2.0.9

Published CVSS scores

8.8VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.7VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-470Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')
T1059Command and Scripting Interpreter

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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