critical · CVSS v3 9.1
CVE-2026-84921
Drupal Webform Submissions Delete plugin has a missing authorization flaw that lets attackers delete any submission. The vulnerability is pr
Overview
Drupal Webform Submissions Delete plugin has a missing authorization flaw that lets attackers delete any submission. The vulnerability is present in all releases up to 1.2.0. It can be exploited by unauthenticated users to remove data and potentially disrupt site operations.
Description
Missing Authorization vulnerability in Drupal Webform Submissions Delete allows Forceful Browsing. This issue affects Webform Submissions Delete versions: from 0.0.0 to 1.2.0.
Impact
Confidentiality: attackers can delete sensitive form data. Integrity: data loss. Availability: potential disruption of form processing. Defenders: site administrators and security teams.
Remediation
Upgrade to version 1.2.1 or later where the delete route is protected by proper permission checks. If upgrade not possible, restrict the /webform/submissions/delete route to authenticated users with the 'administer webform' permission via .htaccess or web server ACL. Monitor logs for unauthorized delete attempts.
Risk context
Critical severity (CVSS 9.1) indicates high risk. Immediate patching is recommended.
Affected products
- Drupal Webform Submissions Delete
Scores
- Severity
- critical
- CVSS v2
- 6.4
- CVSS v3
- 9.1
- CVSS v4
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- EPSS
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