CVE-2025-12747

Tainacan <= 1.0.0 - Unauthenticated Information Exposure

2025-11-20 00:00

Strategic Overview

Status: Patched in 1.0.1
Affected Plugin: Tainacan
Affected Version: <= 1.0.0
CVSS: 5.3Medium
Weakness type: CWE-552 · Files or Directories Accessible to External Parties
CVE: CVE-2025-12747

At a glance

CVE-2025-12747 is a medium-severity Files or Directories Accessible to External Parties vulnerability in the Tainacan WordPress plugin, affecting versions <= 1.0.0. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 1.0.1; sites on affected versions should update now. Disclosed November 2025, reported by Deadbee.

Vulnerability Overview

The Tainacan plugin for WordPress is vulnerable to Information Exposure in all versions up to, and including, 1.0.0 via uploaded files marked as private being exposed in wp-content without adequate protection. This makes it possible for unauthenticated attackers to extract potentially sensitive information from files that have been marked as private.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user.

CWE-552: Files or Directories Accessible to External Parties

The product makes files or directories accessible to unauthorized actors, even though they should not be.

Remediation

Update to version 1.0.1, or a newer patched version

How does WordSec protect against this?

Requests carrying this pattern arrive without a session, so nothing upstream of the firewall gets a chance to reject them: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Tainacan 1.0.1 closes this, and updating the plugin is the step that ends it.

Firewall
Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2025-12747 https://www.wordfence.com/threat-intel/vulnerabilities/id/c64869f0-a4dd-4135-8ed8-a6ff82a48e1f https://nvd.nist.gov/vuln/detail/CVE-2025-12747

Related records

Other vulnerabilities in Tainacan

CVSS Vector

5.3

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityLow
IntegrityNone
AvailabilityNone

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