CVE-2026-93767CWE-22path-traversal

CVE-2026-93767

Medium · published October 16, 2026

CVSS v3.1
6.5
EPSS
1%
Percentile
47.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00584 · 47.2th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2026-10-16T10:17Z
References (6)
https://plugins.trac.wordpress.org/browser/tainacan/tags/1.3.0/classes/api/endpoints/class-tainacan-rest-background-processes-controller.php#L147 · [email protected]https://plugins.trac.wordpress.org/browser/tainacan/tags/1.3.0/classes/api/endpoints/class-tainacan-rest-background-processes-controller.php#L391 · [email protected]https://plugins.trac.wordpress.org/browser/tainacan/tags/1.3.0/classes/api/endpoints/class-tainacan-rest-background-processes-controller.php#L393 · [email protected]https://plugins.trac.wordpress.org/browser/tainacan/tags/1.3.0/classes/api/endpoints/class-tainacan-rest-background-processes-controller.php#L418 · [email protected]https://plugins.trac.wordpress.org/changeset?reponame=&old=3733197%40tainacan&new=3733197%40tainacan · [email protected]https://www.wordfence.com/threat-intel/vulnerabilities/id/4ff75bf6-c8c3-43f5-bc71-0e54e892e664?source=cve · [email protected]
EPSS history
Timeline
  • 17 OCT 03:34Z
    EPSS moved — → 1%
    epss
  • 16 OCT 05:30Z
    Tainacan <= 1.3.0 - Authenticated (Subscriber+) Path Traversal to Arbitrary File Read via 'guid' Parameter
    cvelistv5
  • 16 OCT 05:30Z
    Tainacan <= 1.3.0 - Authenticated (Subscriber+) Path Traversal to Arbitrary File Read via 'guid' Parameter
    cvelistv5