CVE-2023-1166

MEDIUM 4.8CVE-2023-1166 · Published 27/06/2023 · updated 17/06/2026

In short

CVE-2023-1166 is a MEDIUM (CVSS 4.8) vulnerability affecting usm premium (ultimatelysocial).
Chance of exploitation in the next 30 days (EPSS): 0.48%, higher than 41.2% of all vulnerabilities.
Fix: update to 16.3 or later.

Package	Affected versions	Patched versions
usm premium ultimatelysocial	`< 16.3`	`16.3`

Description

The USM-Premium WordPress plugin before 16.3 does not sanitize and escape some of its settings, which could allow high-privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example, in multisite setup).

References

wpscan.com/vulnerability/825eccf9-f351-4a5b-b238-9969141b94fa · Exploit

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