Denial of Service Vulnerability in Smush Image Compression by WordPress
CVE-2026-81285

7.5HIGH

Key Information:

Vendor

WordPress
Status
Smush Image Compression And Optimization
Vendor
CVE Published:
28 August 2026

What is CVE-2026-81285?

A vulnerability exists in the Smush Image Compression and Optimization plugin, affecting versions up to 4.2.0. This issue allows unauthenticated users to initiate denial of service attacks, potentially causing service disruptions on affected websites. Proper mitigation strategies should be implemented to protect your site from this risk, including updating to the latest version or disabling the affected plugin.

Affected Version(s)

Smush Image Compression and Optimization <= 4.2.0

References

https://patchstack.com/database/wordpress/plugin/wp-smush...
vdb-entry

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Asim Alshaya | Patchstack Bug Bounty Program
.