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Vulnerability record · CVE-2023-4827 · published 16 October 2023

CVE-2023-4827: Ninjateam filester vulnerability

Ninjateam · Filester

The File Manager Pro WordPress plugin before 1.8 does not properly check the CSRF nonce in the `fs_connector` AJAX action. This allows attackers to make highly privileged users perform unwanted file system actions via CSRF attacks by using GET requests, such as uploading a web shell.

8.8 CVSS 3.1 High EPSS 7.9% · top 5.5%
8.8CVSS 3.1 base score
7.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

The File Manager Pro WordPress plugin before 1.8 does not properly check the CSRF nonce in the `fs_connector` AJAX action. This allows attackers to make highly privileged users perform unwanted file system actions via CSRF attacks by using GET requests, such as uploading a web shell.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://wpscan.com/vulnerability/d4daf0e1-8018-448a-964c-427a355e005f ExploitThird Party Advisory
https://wpscan.com/vulnerability/d4daf0e1-8018-448a-964c-427a355e005f ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.8CVE-2024-8066Ninjateam filester unrestricted file upload vulnerabilityThe File Manager Pro – Filester plugin for WordPress is vulnerable to arbitrary file uploads due to missing validation in the 'fsConnector' function …EPSS 1.1%8.8CVE-2024-7031Ninjateam filester missing authorization vulnerabilityThe File Manager Pro – Filester plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'njt…EPSS 0.62%7.2CVE-2024-9669Ninjateam filester path traversal vulnerabilityThe File Manager Pro – Filester plugin for WordPress is vulnerable to Local JavaScript File Inclusion in all versions up to, and including, 1.8.5 via…EPSS 0.98%7.2CVE-2023-4861Ninjateam filester vulnerabilityThe File Manager Pro WordPress plugin before 1.8.1 allows admin users to upload arbitrary files, even in environments where such a user should not be…EPSS 1.3%4.8CVE-2023-4862Ninjateam filester vulnerabilityThe File Manager Pro WordPress plugin before 1.8.1 does not adequately validate and escape some inputs, leading to XSS by high-privilege users.EPSS 0.40%4.3CVE-2024-12331Ninjateam filester missing authorization vulnerabilityThe File Manager Pro – Filester plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'aja…EPSS 0.35%

Source: NIST National Vulnerability Database (record CVE-2023-4827), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.