CVE-2026-19718: CWE-287 Improper Authentication in BlogVault Backup & Staging
Description
CVE-2026-19718 is a high-severity vulnerability affecting the BlogVault Backup & Staging WordPress plugin version 5.16 and related plugins before version 6.65. It involves improper authentication where unauthenticated users can access data derived from a secret that links a site to its remote management service. The secret is generated using a weak pseudo-random number generator, enabling attackers to recover it and gain administrative access to the site.
CVSS v3.1
Score 8.1high
Affected software
BlogVault Backup & Staging
MalCare WordPress Security Plugin
The WP Remote WordPress Plugin
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-287) affects BlogVault Backup & Staging, MalCare WordPress Security Plugin, and The WP Remote WordPress Plugin versions before 6.65, specifically including version 5.16 of BlogVault Backup & Staging. The flaw allows unauthenticated users to obtain data derived from a secret binding the site to its remote management service. Because the secret is generated with a weak pseudo-random number generator, attackers can recover it and escalate privileges to administrative access. The CVSS v3.1 base score is 8.1, indicating high severity, with network attack vector, high attack complexity, no privileges required, no user interaction, and impacts on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation allows an unauthenticated attacker to recover a secret key used for remote management binding, resulting in full administrative access to the affected WordPress site. This compromises confidentiality, integrity, and availability of the site.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary mitigation has been documented in the provided data. Users should monitor vendor communications for updates and apply patches once available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-08-13T11:43:11.141Z
- State
- PUBLISHED
Threat ID: 6a8e82bcacd9273b4979d496
Added to database: 08/26/2026, 06:07:56 UTC
Last enriched: 09/09/2026, 20:07:26 UTC
Last updated: 10/08/2026, 18:48:43 UTC
Views: 30
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