CVE-2022-1009: The Smush WordPress plugin before 3.9.9 does not sanitise and escape a configuration parameter before outputti

Q: How do I fix CVE-2022-1009?

smush image compression and optimization: upgrade to 3.9.9. Exact commands for each OS are on this page.

Q: Is CVE-2022-1009 being exploited?

CVE-2022-1009 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2022-1009 affect?

CVE-2022-1009 affects smush image compression and optimization. Severity is medium (CVSS 6.1). The Smush WordPress plugin before 3.9.9 does not sanitise and escape a configuration parameter before outputting it back in an admin page when uploading a malicious preset configuration, leading to a Reflected Cross-Site Scripting. For the

Q: How urgent is CVE-2022-1009?

Priority 41/100. Public exploit reference

This month

MEDIUM 6.1UPGRADE

CVE-2022-1009 is a medium-severity flaw (CVSS 6.1) affecting smush image compression and optimization. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Smush WordPress plugin before 3.9.9 does not sanitise and escape a configuration parameter before outputting it back in an admin page when uploading a malicious preset configuration, leading to a Reflected Cross-Site Scripting. For the attack to be successful, an attacker would need an admin to upload a malicious configuration file

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.8% (top 43%)
CISA exploited list	No
Weakness	CWE-79
Published	2022-05-30
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: wpmudev

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

Am I affected?

Timeline

2022-05-30 09:15 UTCPublished CVE record published
2026-06-17 04:21 UTCUpdated Record last modified

wpmudev smush image compression and optimization UPGRADE

Affected: < 3.9.9

Fixed in: 3.9.9

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy smush-image-compression-and-optimization || rpm -q smush-image-compression-and-optimization || smush-image-compression-and-optimization --version

2. UPGRADE to 3.9.9 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade smush-image-compression-and-optimization

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade smush-image-compression-and-optimization

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-2022-1009?

smush image compression and optimization: upgrade to 3.9.9. Exact commands for each OS are on this page.

Is CVE-2022-1009 being exploited?

CVE-2022-1009 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-2022-1009 affect?

CVE-2022-1009 affects smush image compression and optimization. Severity is medium (CVSS 6.1). The Smush WordPress plugin before 3.9.9 does not sanitise and escape a configuration parameter before outputting it back in an admin page when uploading a malicious preset configuration, leading to a Reflected Cross-Site Scripting. For the

How urgent is CVE-2022-1009?

Priority 41/100. Public exploit reference

Software pages

WordPress vulnerabilities

Related CVEs

CVE-2017-15079 HIGH 7.5 UPGRADE The Smush Image Compression and Optimization plugin before 2.7.6 for WordPress allows directory traversal.

References

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