CVE-2026-65443

Received Received - Intake

Unauthenticated XSS in BackWPup Plugin

Publication date: 2026-07-27

Last updated on: 2026-07-27

Assigner: Patchstack

Description

Unauthenticated Cross Site Scripting (XSS) in BackWPup <= 5.7.4 versions.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-07-27

Last Modified

2026-07-27

Generated

2026-07-28

AI Q&A

2026-07-28

EPSS Evaluated

N/A

NVD

CVE-2026-65443

EUVD

EUVD-2026-49659

Affected Vendors & Products

Vendor	Product	Version / Range
backwpup	backwpup	to 5.7.4 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-79	The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

Executive Summary

This is an Unauthenticated Cross Site Scripting (XSS) vulnerability affecting BackWPup plugin versions 5.7.4 and below. It allows attackers to inject malicious scripts into web pages viewed by other users without needing authentication.

Impact Analysis

An attacker could steal user sessions, redirect users to malicious sites, or deface the website. Users with admin privileges could be targeted to gain full control of the site.

Compliance Impact

This vulnerability could lead to data breaches, violating GDPR and HIPAA requirements for data protection and user privacy. Organizations may face fines and legal consequences.

Mitigation Strategies

Update BackWPup to the latest version to patch the XSS vulnerability. If an update is not available, consider disabling or removing the plugin until a fix is released.

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