CVE-2026-15283 | The WPvivid Backup for MainWP plugin for WordPress is vulner… | CVSS 4.4 MEDIUM

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.

Metadata

CVE ID: CVE-2026-15283
State: PUBLISHED
Assigner: Wordfence
Reserved: 2026-07-09 15:49 UTC
Published: 2026-07-10 04:31 UTC
Last updated: 2026-07-10 04:31 UTC
Primary CWE: CWE-79
CWE-79 Improper Neutralization of Input During Web Page Gene…
Vendor / Product: wpvividplugins / WPvivid Backup for MainWP
Sources: cve.org · NVD

Severity & Metrics

4.4 MEDIUM CVSS 3.1

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

Affected products (1)

Vendor	Product	Platform	Versions
wpvividplugins	WPvivid Backup for MainWP	—	0 ≤ 0.9.33

Weakness (CWE)

CWE	Source	Description
CWE-79	cna	CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSS scores (1)

Score	Severity	Version	Source	Vector
4.4	MEDIUM	3.1	cna	CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N

References (2)