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CVE-2021-38356

MEDIUM 6.1 CVSS 3.1
Published
November 1, 2021
Last modified
June 17, 2026
NVD status
Modified
Reported by
security@wordfence.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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'].

Affected WordPress components

  • NextScripts: Social Networks Auto-Poster Plugin · social-networks-auto-poster-facebook-twitter-g
    Confirmed match Active
    From 4.3.20 (including) to 4.3.20 (including)
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • NextScripts NextScripts: Social Networks Auto-Poster — From 4.3.20 (including) to 4.3.20 (including)
  • nextscripts social_networks_auto_poster — Up to and including 4.3.20

References

  • www.wordfence.com https://www.wordfence.com/blog/2021/10/xss-vulnerability-in-nextscripts-social-networks-auto-poster-plugin-impacts-100000-sites/ Exploit, Third Party Advisory
  • nvd.nist.gov Official NVD record