getgrav up to 2.0.0-beta.1 ZIP File code injection

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in getgrav grav up to 2.0.0-beta.1. This affects an unknown function of the component ZIP File Handler. Such manipulation leads to code injection. This vulnerability is uniquely identified as CVE-2026-42607. The attack can be launched remotely. Moreover, an exploit is present. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, has been found in getgrav grav up to 2.0.0-beta.1. Affected by this issue is an unknown code block of the component ZIP File Handler. The manipulation with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Grav is a file-based Web platform. Prior to 2.0.0-beta.2, an authenticated user with administrative privileges can achieve Remote Code Execution (RCE) by uploading a specially crafted ZIP file through the "Direct Install" tool. While the system attempts to block direct .php file uploads, it fails to inspect the contents of uploaded ZIP archives. Once a malicious plugin is extracted, it can execute arbitrary PHP code or drop a persistent web shell on the server. This vulnerability is fixed in 2.0.0-beta.2.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-42607 since 04/29/2026. The exploitation is known to be easy. The attack may be launched remotely. Additional levels of successful authentication are required for exploitation. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.

The exploit is available at exploit-db.com. It is declared as proof-of-concept.

Upgrading to version 2.0.0-beta.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Exploit-DB (52578). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.6

VulDB Base Score: 4.7
VulDB Temp Score: 4.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 9.1
CNA Vector (GitHub_M): 🔒

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Exploit-DB: 🔒

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: grav 2.0.0-beta.2

Timelineinfo

04/29/2026 CVE reserved
05/11/2026 +12 days Advisory disclosed
05/11/2026 +0 days VulDB entry created
05/27/2026 +16 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-42607 (🔒)
GCVE (CVE): GCVE-0-2026-42607
GCVE (VulDB): GCVE-100-362612
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 05/11/2026 18:02
Updated: 05/27/2026 14:25
Changes: 05/11/2026 18:02 (64), 05/27/2026 14:25 (11)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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