CVE-2026-3143
CVE-2026-3143 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-862.
Key facts
- Severity: Medium (CVSS 3.x base score 5.3)
- EPSS exploit prediction: 0% (17th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-26502
- Weakness: CWE-862
- Published:
- Last modified:
Description
The Total Upkeep – WordPress Backup Plugin plus Restore & Migrate by BoldGrid plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'wp_ajax_cli_cancel' function in all versions up to, and including, 1.17.1. This makes it possible for unauthenticated attackers to cancel a pending rollback, potentially preventing a WordPress installation from automatically reverting a failed update.
Frequently asked questions
- What is CVE-2026-3143?
- The Total Upkeep – WordPress Backup Plugin plus Restore & Migrate by BoldGrid plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'wp_ajax_cli_cancel' function in all versions up to, and including, 1.17.1. This makes it possible for unauthenticated attackers to cancel a pending rollback, potentially preventing a WordPress installation from automatically reverting a failed update.
- How severe is CVE-2026-3143?
- CVE-2026-3143 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
- Is CVE-2026-3143 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-3143?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-3143 have an EU (EUVD) identifier?
- Yes. CVE-2026-3143 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26502.
- When was CVE-2026-3143 published?
- CVE-2026-3143 was published on 2026-05-01 and last updated on 2026-06-17.
References
- https://plugins.trac.wordpress.org/browser/boldgrid-backup/trunk/admin/class-boldgrid-backup-admin-auto-rollback.php#L1202
- https://plugins.trac.wordpress.org/browser/boldgrid-backup/trunk/admin/class-boldgrid-backup-admin-core.php#L864
- https://plugins.trac.wordpress.org/browser/boldgrid-backup/trunk/includes/class-boldgrid-backup.php#L459
- https://plugins.trac.wordpress.org/changeset/3480378/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/f25dcd7e-8fb1-471e-bd22-782409de45c4?source=cve
Other CWE-862 (Missing Authorization) vulnerabilities
- CVE-2026-0092 — Critical (CVSS 10.0): In Package Manager, there is a possible device lock controller bypass due to a missing permission check. This could…
- CVE-2026-33712 — Critical (CVSS 10.0): Typebot is a chatbot builder tool. In versions 3.15.2 and prior, the preview chat endpoint (POST…
- CVE-2026-2031 — Critical (CVSS 10.0): An Improper Access Control vulnerability in several internal API endpoints for Google Cloud Application Integration…
- CVE-2026-34976 — Critical (CVSS 10.0): Dgraph is an open source distributed GraphQL database. Prior to 25.3.1, the restoreTenant admin mutation is missing…
- CVE-2025-30416 — Critical (CVSS 10.0): Sensitive data disclosure and manipulation due to missing authorization. The following products are affected: Acronis…
- CVE-2025-45854 — Critical (CVSS 10.0): /server/executeExec of JEHC-BPM 2.0.1 allows attackers to execute arbitrary code via execParams.
Browse all CWE-862 (Missing Authorization) vulnerabilities →