CVE-2021-39356

MEDIO 4.8CVE-2021-39356 · Published 21/10/2021 · updated 17/06/2026

In breve

CVE-2021-39356 è una vulnerabilità MEDIO (CVSS 4.8) che riguarda content staging (content staging project).
Probabilità di sfruttamento nei prossimi 30 giorni (EPSS): 0.99%, superiore al 62.7% delle vulnerabilità.
Nessuna versione corretta ancora nota: segui l'avviso del produttore nei riferimenti.

Package	Affected versions	Patched versions
content staging content_staging_project	`≤ 2.0.1`	No fix yet

Description

The Content Staging WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and escaping via several parameters that are echo'd out via the ~/templates/settings.php file which allowed attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 2.0.1. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled.

References

BigTiger2020/word-press · Exploit
plugins.trac.wordpress.org/browser/content-staging/trunk/templates/settings.php · Third Party Advisory
wordfence.com/vulnerability-advisories · Third Party Advisory

Running one of these products? Scan your site to see whether it exposes a vulnerable version.

Scan my site free