WPvivid Backup for MainWP: Cross-site scripting
WPvivid Backup for MainWP is affected by cross-site scripting. Exploitation requires an authenticated WordPress account. Injected script can execute in the affected site's origin when the vulnerable output is viewed. The published affected range is <= 0.9.33.
- Component
- WPvivid Backup for MainWP
- Plugin slug
wpvivid-backup-for-mainwp- Affected
- <= 0.9.33
- Safe version
> 0.9.33- Published
- Jul 10, 2026
This CVE was published Jul 10, 2026 and is one of 1 known issue for this plugin.
Update, patch or deactivate.
Update WPvivid Backup for MainWP to a release after 0.9.33, or disable and remove it until a fixed version is available.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical 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.
CVE / CNA vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N