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Back to active CVEs
High · CVSS 7.5CVE-2026-81285

WordPress Smush Image Compression and Optimization plugin <= 4.2.0 - Denial of Service Attack vulnerabilityCVE-2026-81285

Answer in brief

CVE-2026-81285 records a High severity (CVSS 7.5) vulnerability in WordPress Smush Image Compression and Optimization plugin <= 4.2.0 - Denial of Service Attack vulnerability. The current sources do not mark it as known exploited. The current feed maps WPMU DEV/Smush Image Compression and Optimization (generic), WPMU DEV/wp-smushit (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 28, 2026Updated Aug 28, 2026Source checked Oct 12, 2026First seen by HOL Aug 28, 2026Material review Aug 28, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 7.5
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps WPMU DEV/Smush Image Compression and Optimization (generic), WPMU DEV/wp-smushit (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
WPMU DEV/Smush Image Compression and Optimizationgenericn/aNot reported
WPMU DEV/wp-smushitgeneric>=n/a <=4.2.0Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for WPMU DEV/Smush Image Compression and Optimization, WPMU DEV/wp-smushit.
  2. 2Review the reported fix. Source-reported solution: Update the WordPress Smush Image Compression and Optimization Plugin to the latest available version (at least 4.3.0).

Evidence timeline and material changes

  1. Published upstream

    Aug 28, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Aug 28, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Aug 28, 2026

Sources and claim methodology

  • Source referencepatchstack.com
Upstream source description

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

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • WordPress Salevo plugin <= 1.3.0 - Broken Access Control vulnerabilitySame generic ecosystem
  • hex_core decompresses registry and Erlang term API responses without size limitsSame generic ecosystem
  • WordPress Booktics plugin <= 1.0.28 - Broken Access Control vulnerabilitySame generic ecosystem
  • WordPress Quiz And Survey Master plugin <= 11.2.7 - Cross Site Scripting (XSS) vulnerabilitySame generic ecosystem
  • WordPress Broadcast Live Video plugin <= 7.3.6 - Broken Access Control vulnerabilitySame generic ecosystem
  • WordPress Paid Videochat Turnkey Site plugin <= 7.5.13 - Broken Access Control vulnerabilitySame generic ecosystem

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-770
Source
CVE List V5
Source checked
Oct 12, 2026
References
1 linked source
Open source record