CVE-2021-38356 - CVE House
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Status published Medium CVE-2021-38356

NextScripts: Social Networks Auto-Poster <= 4.3.20 Reflected Cross-Site Scripting

Vulnerability Description

The NextScripts: Social Networks Auto-Poster <= 4.3.20 WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the $_REQUEST['page'] parameter which is echoed out on inc/nxs_class_snap.php by supplying the appropriate value 'nxssnap-post' to load the page in $_GET['page'] along with malicious JavaScript in $_POST['page'].

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Ramuel Gall, Wordfence

Affected Vendor

NextScripts

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Affected Software

NextScripts: Social Networks Auto-Poster
Vulnerable Versions:
4.3.20

Timeline

Official Publish: November 1st, 2021
Last Modified: March 31st, 2025
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weaknesses (CWE)