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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2026-110039

Smush < 4.3.4 - Admin+ Network-Wide Plugin Settings Update on MultisiteCVE-2026-110039

Answer in brief

CVE-2026-110039 records a Unknown severity vulnerability in Smush < 4.3.4 - Admin+ Network-Wide Plugin Settings Update on Multisite. The current sources do not mark it as known exploited. The current feed maps Unknown/Smush (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 Oct 16, 2026Updated Oct 16, 2026Source checked Oct 16, 2026First seen by HOL Oct 16, 2026Material review Oct 16, 2026
Upstream Advisory

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

A CVSS score is not reported in the current record. 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 Unknown/Smush (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Unknown/Smushgeneric>=0 <4.3.44.3.4

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Unknown/Smush.
  2. 2Review the reported fix. Update Unknown/Smush to 4.3.4 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 16, 2026

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

  2. Source modified

    Oct 16, 2026

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

  3. First seen by HOL

    Oct 16, 2026

Sources and claim methodology

  • Source referencewpscan.com
Upstream source description

The Smush WordPress plugin before 4.3.4 does not restrict changes to a network-wide access setting to network administrators, allowing an administrator of a single site on a multisite network to change it for the entire network.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • WSP MCP <= 2.9.5 - Authenticated (Subscriber+) Sensitive Information Disclosure via Broken Access Control to 'wsp_get_posts' MCP ToolAlso CWE-863
  • Mattermost invitation tokens not bound to invited email address allowing unauthorized team and private channel accessAlso CWE-863
  • Private team metadata disclosure via the team search APIAlso CWE-863
  • Mattermost guest account privilege escalation via member roles APIAlso CWE-863
  • Mattermost fails to reject OAuth application sessions in account type switch, allowing account takeover via bearer tokenAlso CWE-863
  • FiboSearch <= 1.34.2 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'purchased_plan' ParameterSame generic ecosystem

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-863
Source
CVE List V5
Source checked
Oct 16, 2026
References
1 linked source
Open source record