What is CVE-2022-3618?

CVE-2022-3618 is a medium-severity vulnerability in Clevelandwebdeveloper Spacer, classified under CWE-79 CROSS-SITE SCRIPTING (XSS). CVSS score: 4.8/10. Published 2022-11-21.

How severe is CVE-2022-3618?

Medium severity. CVSS v3 base score is 4.8 out of 10.

Is CVE-2022-3618 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Clevelandwebdeveloper Spacer

CVE-2022-3618

The Spacer WordPress plugin before 3.0.7 does not sanitize and escapes 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).

Published 2022-11-21 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (40.3th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000

Affected products

Clevelandwebdeveloper Spacer
Spacer — versions 0

Public proof-of-concept exploits

20142995/nuclei-templates

References

wpscan.com/vulnerability/2011dc7b-8e8c-4190-ab34-de288e14685b (Exploit, technical-description, Third Party Advisory, exploit, vdb-entry)

Frequently asked questions

What is CVE-2022-3618?: CVE-2022-3618 is a medium-severity vulnerability in Clevelandwebdeveloper Spacer, classified under CWE-79 CROSS-SITE SCRIPTING (XSS). CVSS score: 4.8/10. Published 2022-11-21.
How severe is CVE-2022-3618?: Medium severity. CVSS v3 base score is 4.8 out of 10.
Is CVE-2022-3618 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.