CVE-2026-19453— JetBackup 3.1.7.9 - 3.1.23.3 - Subscriber+ Privilege Escalation via Restore Admin User Selection
Quick assessment
Affected
Unknown JetBackup
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
JetBackup WordPress 插件在 3.1.23.5 版本之前，在执行站点恢复或迁移时，未对保留账户的角色或权限进行校验，就直接为其授予管理员权限。这使得一个仅具有订阅者（Subscriber）权限的用户，在网站所有者执行恢复或迁移操作后，能够获得管理员访问权限。
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I. Basic Information for CVE-2026-19453
Vulnerability Information
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Vulnerability Title
JetBackup 3.1.7.9 - 3.1.23.3 - Subscriber+ Privilege Escalation via Restore Admin User Selection
Source: CVE Program / CVE List V5
Vulnerability Description
The JetBackup WordPress plugin before 3.1.23.5 does not verify the role or capabilities of the account it preserves across a restore or migration before granting it administrator privileges, allowing a subscriber-level user to gain administrator access after the site owner restores or migrates the site.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-19453
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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No public POC found.
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Proof of Concept for CVE-2026-19453 (1)
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🔗 JetBackup 3.1.7.9 – 3.1.23.3 – Subscriber+ Privilege Escalation via Restore Admin User Selection | CVE 2026-19453 | Plugin Vulnerabilities exploit vdb-entry technical-description
Same Patch Batch · Unknown · 2026-09-02 · 41 CVEs total
| CVE-2026-19719 | Social Media Share Buttons & Social Sharing Icons < 3.0.1 - Contributor+ Stored XSS via Po | |
| CVE-2026-77784 | Rank Math SEO < 1.0.277 - Author+ Robots and Pillar Content Meta Update on Non-Owned Objec | |
| CVE-2026-77783 | Rank Math SEO < 1.0.277 - Unauthenticated Non-Public Post Schema and Content Disclosure | |
| CVE-2026-77785 | Rank Math SEO < 1.0.277 - Author+ Non-Public Post Content Disclosure via Abilities API | |
| CVE-2026-77764 | GamiPress < 7.9.9.6 - Subscriber+ Arbitrary User Points and Achievement Award via Watch-Vi | |
| CVE-2026-77782 | Rank Math SEO < 1.0.277.1 - Unauthenticated Password-Protected Post Content Disclosure via | |
| CVE-2026-74927 | MultiVendorX 5.0.13 - 5.0.14 - Unauthenticated Vendor PII and Payout Data Disclosure via s | |
| CVE-2026-19116 | WP User Frontend < 4.3.11 - Subscriber+ PHP Object Injection via Frontend Post Edit Form | |
| CVE-2026-19251 | Ultimate Member < 2.13.0 - Unauthenticated Unapproved Comment Disclosure via Profile Activ | |
| CVE-2026-19704 | Comments – wpDiscuz < 7.6.66 - Unauthenticated Comment Disclosure via SQLi | |
| CVE-2026-77787 | Rank Math SEO < 1.0.277 - Author+ Term Metadata Update and Cross-Object Post Title Overwri | |
| CVE-2026-19723 | Social Media Share Buttons & Social Sharing Icons < 3.0.1 - Reflected XSS via Pin It Share | |
| CVE-2026-15232 | Appointment Booking Lite < 2.4.8 - Unauthenticated Arbitrary Reservation Deletion | |
| CVE-2026-16966 | Solace Extra < 1.7.0 - Unauthenticated Draft/Private Site Builder Content Disclosure via g | |
| CVE-2026-16983 | Gutentor < 4.0.6 - Subscriber+ Password Protected Post Password Disclosure via REST API | |
| CVE-2026-14215 | Amelia < 2.4.9 - Unauthenticated Post-Booking Action Trigger | |
| CVE-2026-12526 | Advanced Custom Fields: Extended < 0.9.2.7 - Unauthenticated Administrator Account Takeove | |
| CVE-2026-12865 | Photo Gallery by 10Web < 1.8.44 - Reflected XSS via title and paged Parameters | |
| CVE-2025-15663 | BEAF < 4.7.19 - Author+ Stored XSS via After Label | |
| CVE-2025-15664 | BEAF < 4.7.19 - Author+ Stored XSS via Before Label |
Showing top 20 of 41 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same vendor: Unknown
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CVE-2026-82182
WPvivid Backup & Migration < 0.9.133 - Admin+ SQLi via Uploa -
CVE-2026-82183
OAuth Single Sign On 6.25.0 - 7.0.0 - Unauthenticated Accoun -
CVE-2026-81807
Simple Ajax Chat < 20260827 - Unauthenticated Stored XSS via -
CVE-2026-81737
FAQ Builder AYS 1.6.3 - 1.8.4 - Unauthenticated Stored XSS v -
CVE-2026-81432
JetStyleManager < 1.3.9 - Skin Deletion and Modification via
V. Comments for CVE-2026-19453
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