Known vulnerabilities in Content Mask

Embed any external content on a Page, Post, or Custom Post Type without the need to use complicated domain forwarding or domain masks.

4Reported vulnerabilities

6.4Highest CVSS score

1.8.5.5Latest version

1,000+Active installs

What to do now

Update Content Mask to 1.8.5.5 or later. 4 of these have a fixed version available. Updating resolves them.

Plugin last updated: June 24, 2026 / Tested up to WordPress: 7.0.4 / View on wordpress.org

Reported vulnerabilities

Ordered by how urgently they need attention — whether a vulnerability is actually being exploited, and how likely exploitation is, rather than CVSS severity alone.

CVE	Severity	Exploit probability next 30 days	Affected versions	Fixed in	Published
CVE-2022-1203	Medium 4.3	1.0%	Before 1.8.4.1	`1.8.4.1`	May 30, 2022
CVE-2025-58011	Medium 6.4	0.2%	1.8.5.2 and earlier	`1.8.5.3`	September 22, 2025
CVE-2026-77003	Medium 4.3	0.2%	1.8.0 to 1.8.5.4 (inclusive)	`1.8.5.5`	August 28, 2026
CVE-2025-58012	Medium 4.3	0.3%	1.8.5.3 and earlier	`1.8.5.4`	September 22, 2025

Sources: vulnerability records from NVD, exploitation from CISA KEV, exploit probability from EPSS. Affected versions come from CPE ranges or from the reporting CNA.