CVE-2026-54839Network attack vector

Unauthenticated backup disclosure via direct storage access

Published Jun 26, 2026 · Updated Jun 26, 2026

Authorization bypass in KingAddons.com Trinity Backup 2.0.9 and earlier allows remote attackers to download stored site backups. The plugin stores backup archives and job-state files under a web-accessible path and permits direct requests instead of routing downloads through an authenticated WordPress handler. No account or user interaction is required; exposed archives can contain database records and all wp-content files, while the published impact is limited to disclosure.

CVSS severity7.5
High
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in KingAddons.com Trinity Backup 2.0.9 and earlier allows remote attackers to download stored site backups. The plugin stores backup archives and job-state files under a web-accessible path and permits direct requests instead of routing downloads through an authenticated WordPress handler. No account or user interaction is required; exposed archives can contain database records and all wp-content files, while the published impact is limited to disclosure.

The record

CVE
CVE-2026-54839
Published
Jun 26, 2026
Updated
Jun 26, 2026
Vendor
KingAddons.com
Product
Trinity Backup
Classifications
CWE-639, CAPEC-37, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 26, 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=n/a <=2.0.9 changes=[{"at":"2.0.10","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

KingAddons.com · Trinity Backupversion=n/a <=2.0.9 changes=[{"at":"2.0.10","status":"unaffected"}]

Published CVSS scores

7.5Patchstack CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
CAPEC-37Retrieve Embedded Sensitive Data
T1005Data from Local System

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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