CVE-2024-32792Network attack vector

Unauthorized cache clearing via unchecked AJAX handlers

Published Jun 9, 2024 · Updated Apr 28, 2026

Missing authorization in WPMU DEV Hummingbird 3.7.3 and earlier allows remote attackers to clear WordPress caches through AJAX requests. Several functions in /admin/class-ajax.php register AJAX actions without capability checks before performing cache-management operations. No authentication or user interaction is required; the documented consequence is unauthorized cache clearing, not data disclosure or service interruption.

CVSS severity5.3
Medium
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in WPMU DEV Hummingbird 3.7.3 and earlier allows remote attackers to clear WordPress caches through AJAX requests. Several functions in /admin/class-ajax.php register AJAX actions without capability checks before performing cache-management operations. No authentication or user interaction is required; the documented consequence is unauthorized cache clearing, not data disclosure or service interruption.

The record

CVE
CVE-2024-32792
Published
Jun 9, 2024
Updated
Apr 28, 2026
Vendor
WPMU DEV
Product
Hummingbird
Classifications
CWE-862, T1565.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 9, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=3.7.3 changes=[{"at":"3.7.4","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WPMU DEV · Hummingbirdversion=0 <=3.7.3 changes=[{"at":"3.7.4","status":"unaffected"}]

Published CVSS scores

4.3PatchstackCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
5.3NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1565.001Stored Data Manipulation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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