What’s Vulnerable › Vulnerabilities

CVE-2022-1009: Smush < 3.9.9 - Admin+ Reflected Cross-Site Scripting

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-05-30 · updated 2026-06-17
• Weakness: CWE-79

Description

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

Affected products

• Smush – Lazy Load Images, Optimize & Compress Images: before 3.9.9 — fixed in 3.9.9

How to fix

Upgrade to a fixed version: Smush – Lazy Load Images, Optimize & Compress Images 3.9.9. Check the vendor advisory for mitigations.

References

• https://wpscan.com/vulnerability/bb5af08f-bb19-46a1-a7ac-8381f428c11e
• https://wpscan.com/vulnerability/bb5af08f-bb19-46a1-a7ac-8381f428c11e

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