Vulnerability · Published Aug 28, 2026 · Assigned by Patchstack
CVE-2026-81285WordPress Smush Image Compression and Optimization plugin <= 4.2.0 - Denial of Service Attack vulnerability
High 7.5
In plain English
A high-severity resource allocation without limits in Smush Image Compression and Optimization from WPMU DEV. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.5%top 60.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Unauthenticated Denial of Service Attack in Smush Image Compression and Optimization <= 4.2.0 versions.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| WPMU DEV | Smush Image Compression and Optimization | n/a – through 4.2.0 |
Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H