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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.

PUBLISHED Reserved 2026-01-21 | Published 2026-02-26 | Updated 2026-02-26 | Assigner Wordfence




HIGH: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem types

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Product status

Default status
unaffected

* (semver)
affected

Timeline

2026-02-25:Disclosed

Credits

Athiwat Tiprasaharn finder

Itthidej Aramsri finder

References

www.wordfence.com/...-2536-43a5-9925-438bc653d0e5?source=cve

plugins.trac.wordpress.org/...unk/inc/libs/upload-backup.php

plugins.trac.wordpress.org/...2.4/inc/libs/upload-backup.php

cve.org (CVE-2026-1311)

nvd.nist.gov (CVE-2026-1311)

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