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Vulnerability · Published Oct 16, 2026 · Assigned by Wordfence

CVE-2026-93767Tainacan <= 1.3.0 - Authenticated (Subscriber+) Path Traversal to Arbitrary File Read via 'guid' Parameter

Medium 6.5

In plain English

A medium-severity path traversal in Tainacan from tainacan. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities).

Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.6%top 52.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

VendorProductVersions
tainacan Tainacan 0 – through 1.3.0

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References