Resource exhaustion in Wpmu Dev Smush Image Compression And Optimization

CVE-2026-81285

Unauthenticated Denial of Service Attack in Smush Image Compression and Optimization <= 4.2.0 versions.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.005 (38.0th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 38.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-81285: held from 0.003 to 0.005.

EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-81285?
CVE-2026-81285 is a high-severity vulnerability in Wpmu Dev Smush Image Compression And Optimization, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-08-28.
How severe is CVE-2026-81285?
High severity. CVSS v3 base score is 7.5 out of 10.