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TI-2026-79103 Aliases CVE-2026-96355GHSA-4cxr-j7h5-h594

Template injection in Drupal Webform allows remote code execution

Priority MEDIUM 48CWE-1336Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-1336.

Summary

Drupal Webform from 0.0.0 before 6.2.12 and from 6.3.0 before 6.3.1 is affected. Improper neutralization of special elements in a template engine (CWE-1336) lets input be interpreted as template code. An unauthenticated remote attacker can inject code and gain high confidentiality and integrity impact without user interaction.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

Improper Neutralization of Special Elements Used in a Template Engine vulnerability in Drupal Webform allows Code Injection. This issue affects Webform versions: from 0.0.0 to 6.2.12, from 6.3.0 to 6.3.1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00421 36th percentileScored 2026-11-07
Fix Fixed Webform (Drupal): 6.2.12, 6.3.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
DrupalWebform0.0.0 to before 6.2.12; 6.3.0 to before 6.3.16.2.12, 6.3.1Patch availableCNA
  • Webform VendorDrupal Affected 0.0.0 to before 6.2.12; 6.3.0 to before 6.3.1 Fixed in 6.2.12, 6.3.1 Patch available CNA

Remediation

Upgrade Drupal Webform to version 6.2.12 or to version 6.3.1.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA Webform (Drupal) Fixed in 6.2.12, 6.3.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Drupal Webform 6.2.12, 6.3.1

    20 records Highest priority Priority MEDIUM 1 MEDIUM, 19 LOW

    Other records, highest priority first

    • TI-2026-79113 Unbounded allocation in Drupal Webform allows denial of servicePriority LOW 39
    • TI-2026-79114 Webform access bypass via forceful browsingPriority LOW 30
    • TI-2026-79112 Improper interaction frequency control in Drupal WebformPriority LOW 30
    Show all 20 records →

Timeline

  1. 2026-10-22 Threatist record created from CVE-2026-96355
  2. 2026-10-22 Alias added: GHSA-4cxr-j7h5-h594
  3. 2026-10-22 CVSS score added · CISA ADP
  4. 2026-10-22 CISA SSVC decision points changed
  5. 2026-10-22 Priority changed: LOW → MEDIUM
  6. 2026-10-23 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

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences