CVE-2026-1311

high

Description

The Worry Proof Backup plugin for WordPress is vulnerable to Path Traversal in all versions up to, and including, 0.2.4 via the backup upload functionality. This makes it possible for authenticated attackers, with Subscriber-level access and above, to upload a malicious ZIP archive with path traversal sequences to write arbitrary files anywhere on the server, including executable PHP files. This can lead to remote code execution.

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/3ffd6ce0-2536-43a5-9925-438bc653d0e5?source=cve

https://plugins.trac.wordpress.org/browser/worry-proof-backup/trunk/inc/libs/upload-backup.php#L97

https://plugins.trac.wordpress.org/browser/worry-proof-backup/tags/0.2.4/inc/libs/upload-backup.php#L97

Details

Source: Mitre, NVD

Published: 2026-02-26

Updated: 2026-02-27

Risk Information

CVSS v2

Base Score: 9

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High