CVE-2026-93767

The Tainacan plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 1.3.0 via the 'guid' parameter parameter. This makes it possible for authenticated attackers, with subscriber-level access and above, to read the contents of arbitrary files on the server, which can contain sensitive information. This vulnerability is exploitable only when the uploads/tainacan directory does not exist on the server, as this condition causes realpath() to return false, collapsing the base path to an empty string and rendering the containment check ineffective.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://plugins.trac.wordpress.org/browser/tainacan/tags/1.3.0/classes/api/endpoints/class-tainacan-rest-background-processes-controller.php#L147
https://plugins.trac.wordpress.org/browser/tainacan/tags/1.3.0/classes/api/endpoints/class-tainacan-rest-background-processes-controller.php#L391
https://plugins.trac.wordpress.org/browser/tainacan/tags/1.3.0/classes/api/endpoints/class-tainacan-rest-background-processes-controller.php#L393
https://plugins.trac.wordpress.org/browser/tainacan/tags/1.3.0/classes/api/endpoints/class-tainacan-rest-background-processes-controller.php#L418
https://plugins.trac.wordpress.org/changeset?reponame=&old=3733197%40tainacan&new=3733197%40tainacan
https://www.wordfence.com/threat-intel/vulnerabilities/id/4ff75bf6-c8c3-43f5-bc71-0e54e892e664?source=cve

Configurations

No configuration.

History

16 Oct 2026, 06:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-16 06:17

Updated : 2026-10-16 16:22

NVD link : CVE-2026-93767

Mitre link : CVE-2026-93767

CVE.ORG link : CVE-2026-93767

JSON object : View

Products Affected

No product.

CWE

CWE-22

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

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