CVE-2026-104743

MEDIUM
MEDIUM Priority: 0.04 BB Relevance: 55/100
Published: 2026-10-28 Modified: 2026-10-29 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: High
UI: None
S: Unchanged
C: High
I: None
A: None

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.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
tainacan Tainacan 0

Bug Bounty Relevance

55 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

4.9 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

EPSS — Exploitation Probability

0.84%
Raw Score 0.008410
Percentile 57.8%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00841
2026-10-28
0.00841

Intelligence Sources

mitre ref →
nvd ref →