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Back to active CVEs
High · CVSS 7.2CVE-2026-19224

Hummingbird < 3.21.2 - Admin+ Network-Wide RCE via Hub Connector on MultisiteCVE-2026-19224

Answer in brief

CVE-2026-19224 records a High severity (CVSS 7.2) vulnerability in Hummingbird < 3.21.2 - Admin+ Network-Wide RCE via Hub Connector on Multisite. The current sources do not mark it as known exploited. The current feed maps Unknown/Hummingbird Performance (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 Sep 4, 2026Updated Sep 8, 2026Source checked Oct 19, 2026First seen by HOL Sep 4, 2026Material review Sep 8, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 7.2
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 7.2. 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/Hummingbird Performance (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Unknown/Hummingbird Performancegeneric>=3.15.0 <3.21.23.21.2

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Unknown/Hummingbird Performance.
  2. 2Review the reported fix. Update Unknown/Hummingbird Performance to 3.21.2 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Sep 4, 2026

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

  2. Source modified

    Sep 8, 2026

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

  3. First seen by HOL

    Sep 4, 2026

Sources and claim methodology

  • Source referencewpscan.com
Upstream source description

The Hummingbird Performance WordPress plugin before 3.21.2 does not restrict a network-wide setting to network administrators, allowing an administrator of any single site on a multisite network to execute arbitrary code across the entire network.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • llSourcell Doctor-Dignity chat_module.py _get_lib_module code injectionAlso CWE-94
  • Apache Camel: Camel-Dynamic-Router Control Endpoint Compiles Predicate Expressions Supplied by Control MessagesAlso CWE-94

Record context

Vulnerability class
RCE
EPSS
Not reported
CWE IDs
CWE-94
Source
CVE List V5
Source checked
Oct 19, 2026
References
1 linked source
Open source record