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TI-2026-79136 Aliases CVE-2026-96391GHSA-pp56-wg7c-j5hh

Missing authorization in Drupal Webform REST allows access bypass

Priority LOW 20CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-862.

Summary

Webform REST for Drupal from 0.0.0 before 4.2.1 is affected. A missing authorization check lets remote users reach content they should not access through forceful browsing. An attacker needs low privileges and user interaction is not required. No public exploit or CISA KEV listing is reported.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

Description from the CNA

Missing Authorization vulnerability in Drupal Webform REST allows Forceful Browsing. This issue affects Webform REST versions: from 0.0.0 to 4.2.1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00298 22nd percentileScored 2026-11-07
Fix Fixed Webform REST (Drupal): 4.2.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
DrupalWebform REST0.0.0 to before 4.2.14.2.1Patch availableCNA
  • Webform REST VendorDrupal Affected 0.0.0 to before 4.2.1 Fixed in 4.2.1 Patch available CNA

Remediation

Update Drupal Webform REST to version 4.2.1 or later.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

  • Fix · CNA Webform REST (Drupal) Fixed in 4.2.1

Timeline

  1. 2026-10-22 Threatist record created from CVE-2026-96391
  2. 2026-10-22 Alias added: GHSA-pp56-wg7c-j5hh
  3. 2026-10-30 CVSS score added · CISA ADP
  4. 2026-10-30 CISA SSVC decision points changed

References

Other 1

  • TI-2026-07979 Drupal core - Highly critical - SQL injection - SA-CORE-2026-004 KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-05494 Drupal core - Highly critical - Remote Code Execution - SA-CORE-2018-004 KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-05493 Improper input validation in Drupal before 7.58, 8.x before 8.3.9, 8.4.x before 8.4.6… KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-10731 Unrestricted file upload in Drupal Core KEVCVSS 3.1HIGH 8.8
  • TI-2019-04505 Drupal core - Highly critical - Remote Code Execution KEVCVSS 3.1HIGH 8.1
  • TI-2020-17477 Archive_Tar through 1.4.10 has :// filename sanitization only to address phar attacks… KEVCVSS 3.1HIGH 7.8
See all 941 →

Sources

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