CVE-2026-3143Network attack vector

Unauthenticated rollback cancellation via missing capability check

Published May 1, 2026 · Updated May 1, 2026

Missing authorization in BoldGrid Total Upkeep 1.17.1 and earlier allows remote attackers to cancel a pending automatic rollback. The wp_ajax_cli_cancel AJAX handler accepts unauthenticated cancellation requests without checking a WordPress capability before stopping the queued rollback. A reachable WordPress admin AJAX endpoint and a pending rollback are required; cancellation can prevent automatic recovery from a failed update.

CVSS severity5.3
Medium
EPSS probability0.26%
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 BoldGrid Total Upkeep 1.17.1 and earlier allows remote attackers to cancel a pending automatic rollback. The wp_ajax_cli_cancel AJAX handler accepts unauthenticated cancellation requests without checking a WordPress capability before stopping the queued rollback. A reachable WordPress admin AJAX endpoint and a pending rollback are required; cancellation can prevent automatic recovery from a failed update.

The record

CVE
CVE-2026-3143
Published
May 1, 2026
Updated
May 1, 2026
Vendor
Web Ventures
Product
Total Upkeep
Classifications
CWE-862, T1490
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 1, 2026CVE publishedPublication date reported by the CVE source.
  2. May 1, 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 <=1.17.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Web Ventures · Total Upkeepversion=0 <=1.17.1

Published CVSS scores

5.3WordfenceCVSS: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.

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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-862Missing Authorization
T1490Inhibit System Recovery

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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