Tainacan <= 1.3.0 - Authenticated (Editor+) Path Traversal to Arbitrary File Read via 'tmp_file' Parameter via Mass Assignment
Summary
| CVE | CVE-2026-104743 |
|---|---|
| State | PUBLISHED |
| Assigner | Wordfence |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-10-28 07:16:43 UTC |
| Updated | 2026-10-29 02:16:46 UTC |
| Description | The Tainacan plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 1.3.0 via the 'tmp_file' parameter parameter. This makes it possible for authenticated attackers, with editor-level access and above, to read the contents of arbitrary files on the server, which can contain sensitive information. The poisoned importer path is persisted to the database and later triggered via a separate GET request to the /source_info endpoint, which passes the attacker-controlled path to fopen() and fgetcsv() and returns parsed file contents in the REST response. |
Risk And Classification
Primary CVSS: v3.1 4.9 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
EPSS: 0.008410000 probability, percentile 0.577650000 (date 2026-10-28)
Problem Types: CWE-22 | CWE-22 CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 4.9 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N |
| 3.1 | CNA | DECLARED | 4.9 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
HighUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
NoneAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| github.com/tainacan/tainacan/commit/1cc2c179d213670ae4bd378473d6fecbc35c... | [email protected] | github.com | |
| plugins.trac.wordpress.org/browser/tainacan/tags/1.3.0/classes/api/endpoints/class-taina... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/tainacan/tags/1.3.0/classes/background-process/import... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/tainacan/tags/1.3.0/classes/background-process/import... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/tainacan/tags/1.4.0/classes/api/endpoints/class-taina... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/tainacan/tags/1.3.0/classes/background-process/import... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/tainacan/tags/1.3.0/classes/background-process/import... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/tainacan/tags/1.3.0/classes/api/endpoints/class-taina... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/tainacan/tags/1.3.0/classes/api/endpoints/class-taina... | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/tainacan/tags/1.3.0/classes/api/endpoints/class-taina... | [email protected] | plugins.trac.wordpress.org | |
| www.wordfence.com/threat-intel/vulnerabilities/id/e16bda6d-0818-468b-9114-82a8f... | [email protected] | www.wordfence.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Wordfence PRISM (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-10-02T12:11:03.000Z | Vendor Notified |
| CNA | 2026-10-27T17:42:14.000Z | Disclosed |
There are currently no legacy QID mappings associated with this CVE.