Vulnerabilities

CVE-2026-81285 | BDVDB-2026-366127 Detail

WPMU DEVSmush Image Compression and Optimization

Description#

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

Impact#

CAPEC-469 HTTP DoS

Weaknesses#

CWE-770 Allocation of Resources Without Limits or Throttling

References#

https://patchstack.com/database/wordpress/plugin/wp-smushit/vulnerability/wordpress-smush-image-compression-and-optimization-plugin-4-2-0-denial-of-service-attack-vulnerability?_s_id=cve

Exploit#

No public exploit known

History#

Version 12026-08-28Record published in the CVE List.

Published

Published: 2026-08-28
Last modified: 2026-08-28

Vendor information

Vendor: WPMU DEV
Product: Smush Image Compression and Optimization

All WPMU DEV vulnerabilities

Score

7.5 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 40.1.

KEV

No

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
<= 4.2.0
Fixed
Not stated
Vulnerable
Not stated
Fixed
4.3.0

Scoring System

CVSS v4.0

Not available

CVSS v3.1

7.5 High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	None
Integrity	None
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).