Remote Code Execution in Pegasus CMS extra_fields.php Plugin

Publication date: 2026-04-05

Last updated on: 2026-04-24

Assigner: VulnCheck

Description

Pegasus CMS 1.0 contains a remote code execution vulnerability in the extra_fields.php plugin that allows unauthenticated attackers to execute arbitrary commands by exploiting unsafe eval functionality. Attackers can send POST requests to the submit.php endpoint with malicious PHP code in the action parameter to achieve code execution and obtain an interactive shell.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-04-05

Last Modified

2026-04-24

Generated

2026-07-06

AI Q&A

2026-04-06

EPSS Evaluated

2026-07-05

NVD

CVE-2019-25687

Affected Vendors & Products

Vendor	Product	Version / Range
wisdom	pegasus_cms	1.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-22	The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Attack-Flow Graph

Executive Summary

Pegasus CMS 1.0 contains a remote code execution vulnerability in the extra_fields.php plugin. This vulnerability allows unauthenticated attackers to execute arbitrary commands by exploiting unsafe eval functionality. Specifically, attackers can send POST requests to the submit.php endpoint with malicious PHP code in the action parameter, which leads to code execution and enables them to obtain an interactive shell on the affected system.

Impact Analysis

This vulnerability can have severe impacts as it allows attackers to remotely execute arbitrary code without any authentication. This means attackers can gain full control over the affected system, potentially leading to data theft, system compromise, installation of malware, or further attacks within the network.

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