CVE-2023-1166

CVE-2023-1166 is a medium-severity vulnerability in Ultimatelysocial Usm Premium with a CVSS 3.x base score of 4.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

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).

Frequently asked questions

What is CVE-2023-1166?
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).
How severe is CVE-2023-1166?
CVE-2023-1166 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-1166 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-1166?
CVE-2023-1166 affects Ultimatelysocial Usm Premium. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-1166?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-1166 published?
CVE-2023-1166 was published on 2023-06-27 and last updated on 2026-06-17.

References

Affected products (1)