What is CVE-2026-16570?

CVE-2026-16570 is a high-severity vulnerability in Nextscripts: Social Networks Auto-Poster, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2026-08-19.

How severe is CVE-2026-16570?

High severity. CVSS v3 base score is 7.1 out of 10.

XSS in Nextscripts: Social Networks Auto-Poster

CVE-2026-16570

The NextScripts: Social Networks Auto-Poster WordPress plugin before 4.4.8 does not escape some of the query-string parameters it reflects back on one of its admin pages, allowing attackers to perform Reflected Cross-Site Scripting attacks against logged-in users such as administrators who are tricked into opening a crafted link.

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L.

Affected products

Unknown Nextscripts: Social Networks Auto-poster

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-16570?: CVE-2026-16570 is a high-severity vulnerability in Nextscripts: Social Networks Auto-Poster, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2026-08-19.
How severe is CVE-2026-16570?: High severity. CVSS v3 base score is 7.1 out of 10.