---
title: "WEB-CMS-011 Drupal Version Disclosed by Changelog"
canonical: https://openvapt.com/checks/WEB-CMS-011.html
html: https://openvapt.com/checks/WEB-CMS-011.html
site: OpenVAPT, https://openvapt.com/
license: OpenVAPT Source-Available Licence 1.3, https://openvapt.com/legal/licence-text.html
modified: 2026-10-14
version: 0.1.0-alpha.6
---

# WEB-CMS-011 Drupal Version Disclosed by Changelog

Checks whether a Drupal site serves CHANGELOG.txt, which names the exact Drupal version.

- Domain: Web Apps
- Severity: Low
- Control category: Information Exposure
- Fix effort: low
- CVSS v3.1 vector: `CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N`
- CIS Controls v8: 16.7
- NIST CSF 2.0: PR.PS-01
- CWE: CWE-497
- OWASP Top 10 2021: A05:2021, A06:2021
- OWASP ASVS 4.0.3: 14.3.3
- OWASP WSTG v4.2: WSTG-INFO-08
- NIST SP 800-53 Rev. 5: SI-11

## Why It Matters

The changelog tells attackers precisely which Drupal security advisories apply, as was used at scale for Drupalgeddon 2 (CVE-2018-7600).

## How It Detects

Sends one GET each for /CHANGELOG.txt and /core/CHANGELOG.txt and fails on a 200 response that mentions Drupal.

## How to Fix

Delete the changelog files after each update, or deny *.txt files in the Drupal root and core folders at the web server, and keep Drupal updated.

## How to Verify

```
curl -s -o /dev/null -w '%{http_code}' https://<site>/core/CHANGELOG.txt  prints 403 or 404.
```

## Learn the Theory

- [P6 Information Exposure and Misconfiguration](https://openvapt.com/academy/p6.md)
- [P14 CMS Hardening in Depth: WordPress, Joomla and Drupal](https://openvapt.com/academy/p14.md)

## References

- [Drupal.org, Security advisories](https://www.drupal.org/security)
- [NVD, CVE-2018-7600](https://nvd.nist.gov/vuln/detail/cve-2018-7600)

## Source Code

https://github.com/OpenVAPT/openvapt/blob/574f7f3333c44b75a3c649e2d93a76d507f75adf/internal/checks/web/cms_more.go

Run it: `openvapt scan --only WEB-CMS-011`. Read it offline: `openvapt explain WEB-CMS-011`.

---

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