XSS in Narrative Publisher
CVE-2026-16273
The Narrative Publisher WordPress plugin through 1.0.7 does not restrict write access to a REST-exposed post meta field or escape it when rendering, allowing users with contributor-level access and above to store JavaScript that executes in the browser of any higher-privileged user who views the affected post.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.001 (2.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N.
Affected products
- Unknown Narrative Publisher — versions 0
Weakness classification (CWE)
References
- contact@wpscan.com (technical-description, exploit, vdb-entry)
Frequently asked questions
- What is CVE-2026-16273?
- CVE-2026-16273 is a medium-severity vulnerability in Narrative Publisher, classified under Cross-site Scripting. CVSS score: 4.6/10. Published 2026-08-02.
- How severe is CVE-2026-16273?
- Medium severity. CVSS v3 base score is 4.6 out of 10.