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CVE-2022-3618: The Spacer WordPress plugin before 3.0.7 does not sanitize and escapes some of its settings, which could allow

33
Routine
MEDIUM 4.8UPGRADE

CVE-2022-3618 is a medium-severity flaw (CVSS 4.8) affecting spacer. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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).

Why this priority

  • Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score4.8 (Medium)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededHigh
User interactionRequired
EPSS exploit chance0.5% (top 56%)
CISA exploited listNo
Published2022-11-21
Last modified2026-06-17
Publisher (CNA): WPScan · Vendor: clevelandwebdeveloper

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Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

clevelandwebdeveloper spacer UPGRADE
Affected: < 3.0.7
Fixed in: 3.0.7
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy spacer || rpm -q spacer || spacer --version
2. UPGRADE to 3.0.7 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade spacer
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade spacer
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-3618?

spacer: upgrade to 3.0.7. Exact commands for each OS are on this page.

Is CVE-2022-3618 being exploited?

CVE-2022-3618 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-3618 affect?

CVE-2022-3618 affects spacer. Severity is medium (CVSS 4.8). 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 dis

How urgent is CVE-2022-3618?

Priority 33/100. Public exploit reference

Software pages

WordPress vulnerabilities

References

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