Stored Cross-Site Scripting Vulnerability in WPvivid Backup for MainWP Plugin
CVE-2026-15283

4.4MEDIUM

Key Information:

Vendor

WordPress
Status
WPvivid Backup For MainWP
Vendor
CVE Published:
10 July 2026

What is CVE-2026-15283?

The WPvivid Backup for MainWP plugin for WordPress is vulnerable to a Stored Cross-Site Scripting issue through its admin settings. This vulnerability arises from inadequate input sanitization and output escaping, allowing authenticated attackers with administrator-level permissions to inject malicious web scripts. These scripts can execute whenever a user interacts with the affected page. It primarily impacts installations in a multi-site setup and those where unfiltered_html has been disabled.

Affected Version(s)

WPvivid Backup for MainWP 0 <= 0.9.33

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/changeset?sfp_email=&s...

CVSS V3.1

Score:
4.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
High
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

shaman0x01
.