Backup Migration before 2.1.8 for WordPress contains a path traversal vulnerability in its PclZip restore fallback that allows an attacker to achieve arbitrary file write when an administrator restores a malicious backup archive on a server lacking the PHP zip extension. Attackers can craft a zip archive with entry names containing ".." sequences, which PclZip's extract() processes without the PCLZIP_OPT_EXTRACT_DIR_RESTRICTION option, writing a PHP file outside the intended extraction directory into the web-servable tree to achieve remote code execution.
Metrics
Affected Vendors & Products
References
History
Fri, 13 Nov 2026 04:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Inisev
Inisev backup Migration Wordpress-extensions Wordpress-extensions backup Migration |
|
| Vendors & Products |
Inisev
Inisev backup Migration Wordpress-extensions Wordpress-extensions backup Migration |
Thu, 12 Nov 2026 12:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Backup Migration before 2.1.8 for WordPress contains a path traversal vulnerability in its PclZip restore fallback that allows an attacker to achieve arbitrary file write when an administrator restores a malicious backup archive on a server lacking the PHP zip extension. Attackers can craft a zip archive with entry names containing ".." sequences, which PclZip's extract() processes without the PCLZIP_OPT_EXTRACT_DIR_RESTRICTION option, writing a PHP file outside the intended extraction directory into the web-servable tree to achieve remote code execution. | |
| Title | Backup Migration before 2.1.8 Path Traversal via PclZip Restore Fallback | |
| Weaknesses | CWE-22 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-11-12T12:25:41.651Z
Updated: 2026-11-12T17:53:37.768Z
Reserved: 2026-11-12T12:23:32.735Z
Link: CVE-2026-127050
No data.
Status : Deferred
Published: 2026-11-12T13:17:16.010
Modified: 2026-11-12T21:36:06.743
Link: CVE-2026-127050
No data.
ReportizFlow