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CVE-2026-101148— BackupSheep <= 1.8 - Unauthenticated Arbitrary File Deletion and Backup Exfiltration via Empty Integration Key

Quick assessment

Affected
Unknown BackupSheep WordPress Backup Plugin
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.

BackupSheep WordPress 备份插件（版本 1.8 及更早）未对其集成密钥进行有效验证，将未设置或为空的密钥视为有效。这使得未经身份验证的攻击者能够创建并下载完整的站点备份（包括包含用户密码哈希值的数据库），并在服务器上删除任意文件，从而导致敏感数据泄露和站点被完全接管。 自 2024 年 7 月起，BackupSheep WordPress 备份插件已在 WordPress.org 上被下架，且目前没有可用的修复版本。请从任何已安装该插件的网站中将其移除。

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I. Basic Information for CVE-2026-101148

Vulnerability Information
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Vulnerability Title
BackupSheep <= 1.8 - Unauthenticated Arbitrary File Deletion and Backup Exfiltration via Empty Integration Key
Source: CVE Program / CVE List V5
Vulnerability Description
The BackupSheep WordPress Backup Plugin WordPress plugin through 1.8 does not properly validate its integration key, treating an unset or blank key as valid, which allows unauthenticated attackers to create and download full site backups, including the database with user password hashes, and to delete arbitrary files on the server, leading to sensitive data disclosure and site takeover. The BackupSheep WordPress Backup Plugin WordPress plugin through 1.8 has been closed on WordPress.org since July 2024 and no fixed version is available. Remove it from any site where it is installed.
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

Vendor Product Affected Versions CPE Subscribe
Unknown BackupSheep WordPress Backup Plugin 0 ~ 1.8 -

II. Public POCs for CVE-2026-101148

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III. Intelligence Information for CVE-2026-101148

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Other References for CVE-2026-101148 (1)

Same Patch Batch · Unknown · 2026-10-01 · 15 CVEs total

CVE-2026-96173 Payments for Hubtel < 1.0.2 - Unauthenticated Order Key Disclosure via IDOR
CVE-2026-96200 Payments for Hubtel < 1.0.2 - Unauthenticated Payment Confirmation Forgery via Delayed Pay
CVE-2026-96255 Payments for Hubtel < 1.0.2 - Unauthenticated Payment Gateway Credentials Disclosure via D
CVE-2026-89296 Pro Like Button < 2.0 - Unauthenticated SQLi via 'postid' Parameter
CVE-2026-87973 If-So Dynamic Content 1.9.9 - 1.10.1 - Editor+ Stored XSS via Conversion Name
CVE-2026-87970 If-So Dynamic Content 1.8 - 1.10.1 - Reflected XSS via render_ifso_shortcodes
CVE-2026-92412 Five Star Restaurant Reviews < 2.3.14 - Reflected XSS
CVE-2026-90972 WP Fusion Lite < 3.48.0 - Subscriber+ User Email Disclosure and Cross-User CRM Data Deleti
CVE-2026-90974 WP Fusion Lite 3.37.14 - 3.47.14 - Unauthenticated CRM Integration Settings Update
CVE-2026-19253 Cache Enabler < 1.8.17 - Unauthenticated Arbitrary File and Directory Deletion via cache_e
CVE-2026-81739 Paytm Payment Gateway < 2.8.9 - Unauthenticated Stored XSS via Payment Callback
CVE-2026-81809 Paytm Payment Gateway < 2.8.9 - Unauthenticated SQLi via Payment Callback
CVE-2026-86610 Download Manager < 3.3.71 - Author+ Stored XSS via Package Icon
CVE-2026-101147 Featured Image from URL (FIFU) Free & Premium - Administrator Account Creation via CSRF

IV. Related Vulnerabilities

Same vendor: Unknown

V. Comments for CVE-2026-101148

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