CVE-2026-15283

MEDIUM

WPvivid Backup for MainWP <= 0.9.33 - Authenticated (Admin+) Stored Cross-Site Scripting

Title source: cna

Description

The WPvivid Backup for MainWP plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 0.9.33 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

References (2)

Core 2

Core References

https://www.wordfence.com/threat-intel/vulnerabilities/id/2083fdf7-e251-4162-b38f-8dab4395a8a7?source=cve

https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3047890%40wpvivid-backup-mainwp&new=3047890%40wpvivid-backup-mainwp&sfp_email=&sfph_mail=

Scores

CVSS v3 4.4

EPSS 0.0019

EPSS Percentile 8.6%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-79

Status published

Products (1)

wpvividplugins/WPvivid Backup for MainWP < 0.9.33

Published Jul 10, 2026

Tracked Since Jul 10, 2026