CVE-2026-93767 json
Tainacan <= 1.3.0 - Authenticated (Subscriber+) Path Traversal to Arbitrary File Read via 'guid' Parameter
published 2026-10-16 24 d ago modified 2026-10-16 24 d ago also EUVD-2026-102665
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 47%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 24 d ago
Exploit prediction
0.57% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
Affected products
- tainacan Tainacan
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/4ff75bf6-c8c3-43f5-bc71-0e54e892e664?source=cve
- plugins.trac.wordpress.org /browser/tainacan/tags/1.3.0/classes/api/endpoints/class-tainacan-rest-background-processes-controller.php#L39
- plugins.trac.wordpress.org /browser/tainacan/tags/1.3.0/classes/api/endpoints/class-tainacan-rest-background-processes-controller.php#L41
- plugins.trac.wordpress.org /browser/tainacan/tags/1.3.0/classes/api/endpoints/class-tainacan-rest-background-processes-controller.php#L39
- plugins.trac.wordpress.org /browser/tainacan/tags/1.3.0/classes/api/endpoints/class-tainacan-rest-background-processes-controller.php#L14
- plugins.trac.wordpress.org /changeset?reponame=&old=3733197%40tainacan&new=3733197%40tainacan
Sources
- CVE List CVE-2026-93767
- NVD CVE-2026-93767
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