CVE-2023-49283

Test code in published microsoft-graph-core package exposes phpinfo()

MEDIUM
5.3
CVSS Score
Published: December 5, 2023 at 10:44 PM UTC
Updated: June 17, 2026 at 06:35 AM UTC
2 products affected across 2 vendorsGraphGraph

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Severity
MEDIUM5.3
Exploit prediction
EPSS 2%
SSVC
No known exploit

Description

microsoft-graph-core the Microsoft Graph Library for PHP. The Microsoft Graph Beta PHP SDK published packages which contained test code that enabled the use of the phpInfo() function from any application that could access and execute the file at `vendor/microsoft/microsoft-graph-core/tests/GetPhpInfo.php`. The phpInfo function exposes system information. The vulnerability affects the GetPhpInfo.php script of the PHP SDK which contains a call to the phpinfo() function. This vulnerability requires a misconfiguration of the server to be present so it can be exploited. For example, making the PHP application’s /vendor directory web accessible. The combination of the vulnerability and the server misconfiguration would allow an attacker to craft an HTTP request that executes the phpinfo() method. The attacker would then be able to get access to system information like configuration, modules, and environment variables and later on use the compromised secrets to access additional data. This problem has been patched in version 2.0.2. If an immediate deployment with the updated vendor package is not available, you can perform the following temporary workarounds: delete the `vendor/microsoft/microsoft-graph-core/tests/GetPhpInfo.php` file, remove access to the /vendor directory, or disable the phpinfo function

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2.0.2
Affected range stops below 2.0.2, so it looks safe — our inference, not a vendor statement
v < 2.0.2
Affected range stops below 2.0.2, so it looks safe — our inference, not a vendor statement

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-200NVD-CWE-noinfo

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