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CVE-2026-86828— BackWPup < 5.7.7 - Admin+ Path Traversal to RCE via Restore PclZip Fallback

Quick assessment

Affected
Unknown BackWPup
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.

BackWPup WordPress 插件在 5.7.7 版本之前，在使用回退归档库进行备份恢复时，未能正确限制解压文件的保存路径。该漏洞允许高权限用户在预期的恢复目录之外写入文件，可能导致远程代码执行。

AI Predicted 7.8 Difficulty: Easy
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I. Basic Information for CVE-2026-86828

Vulnerability Information
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Vulnerability Title
BackWPup < 5.7.7 - Admin+ Path Traversal to RCE via Restore PclZip Fallback
Source: CVE Program / CVE List V5
Vulnerability Description
The BackWPup WordPress plugin before 5.7.7 does not properly restrict the destination path of files extracted during a backup restore when its fallback archive library is used, allowing high-privileged users to write files outside the intended restore directory, potentially leading to remote code execution.
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 BackWPup 0 ~ 5.7.7 -

II. Public POCs for CVE-2026-86828

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III. Intelligence Information for CVE-2026-86828

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Other References for CVE-2026-86828 (1)

Same Patch Batch · Unknown · 2026-10-08 · 24 CVEs total

CVE-2026-93509 6.5 MEDIUM Wallet System for WooCommerce 2.0.0 - 2.7.10 - Subscriber+ Wallet Balance Manipulation via
CVE-2026-103517 5.3 MEDIUM Airwallex Online Payments Gateway < 1.36.0 - Unauthenticated Payment Bypass via Forged Web
CVE-2026-104671 5.3 MEDIUM TutorStarter < 4.0.4 - Unauthenticated User Registration Bypass via AJAX
CVE-2026-105190 5.3 MEDIUM Easy Digital Downloads < 3.7.1 - Unauthenticated Account Creation with Registration Disabl
CVE-2026-103309 GPTranslate < 2.34.14 - Unauthenticated Stored XSS via REST API Translation Storage
CVE-2026-103646 Ultimate Multisite < 2.17.0 - Unauthenticated Authentication Bypass via 'email_address' Pa
CVE-2026-104646 Image Photo Gallery Final Tiles Grid < 3.6.14 - Contributor+ Stored XSS via Gallery Shortc
CVE-2026-104645 Image Photo Gallery Final Tiles Grid < 3.6.14 - Contributor+ Arbitrary Gallery Cloning, Im
CVE-2026-103692 Frontend Dashboard 3.0.0 - 3.0.4 - Unauthenticated Privilege Escalation via Arbitrary Func
CVE-2026-105195 Booking Calendar 10.15 - 11.8.2 - Editor+ Arbitrary Option Disclosure
CVE-2026-105197 LatePoint < 5.6.5 - Agent+ Arbitrary Order, Customer and Transaction Deletion via IDOR
CVE-2026-105198 LatePoint < 5.7.3 - Unauthenticated Customer PII Disclosure via IDOR
CVE-2026-105194 Easy Digital Downloads < 3.7.1 - Subscriber+ Sensitive Information Disclosure via User Dow
CVE-2026-105196 LatePoint < 5.6.9 - Agent+ Cross-Agent Data Disclosure and Modification via Abilities API
CVE-2026-105193 Booking Calendar < 11.8 - Unauthenticated Booking Information Disclosure and Modification
CVE-2026-86826 BackWPup < 5.7.7 - Unauthenticated Sensitive Data Disclosure via Restore Working Directory
CVE-2026-86827 BackWPup 3.3 - 5.7.6 - Unauthenticated Backup Job Execution via wp-cron.php
CVE-2026-105260 Database Addon For WPForms < 1.1.1 - Arbitrary Form Entry Deletion via CSRF
CVE-2026-94246 Wallet System for WooCommerce 2.0.0 - 2.7.10 - Subscriber+ Forged Wallet Withdrawal Reques
CVE-2026-94244 Wallet System for WooCommerce < 2.8.0 - Subscriber+ Store-Wide Wallet Transaction Disclosu

Showing top 20 of 24 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: BackWPup
Same vendor: Unknown

V. Comments for CVE-2026-86828

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