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CVE-2026-16644— Webform REST - Moderately critical - Access bypass - SA-CONTRIB-2026-087

Quick assessment

Affected
Drupal Webform REST
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Drupal Webform REST是Drupal组织的一个提供网页表单REST接口的模块。 Drupal Webform REST 0.0.0版本至4.1.0之前版本存在授权问题漏洞，该漏洞源于授权不正确，可能导致强制浏览。

AI Predicted 5.3 Difficulty: Easy EPSS 0.31% · P23

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Drupal Webform REST 0.0.0< 4.1.0 affected
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I. Basic Information for CVE-2026-16644

Vulnerability Information
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Vulnerability Title
Webform REST - Moderately critical - Access bypass - SA-CONTRIB-2026-087
Source: CVE Program / CVE List V5
Vulnerability Description
Incorrect Authorization vulnerability in Drupal Webform REST allows Forceful Browsing. This issue affects Webform REST versions: from 0.0.0 to 4.1.0.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Drupal Webform REST 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Drupal Webform REST是Drupal组织的一个提供网页表单REST接口的模块。 Drupal Webform REST 0.0.0版本至4.1.0之前版本存在授权问题漏洞，该漏洞源于授权不正确，可能导致强制浏览。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Drupal Webform REST 0.0.0 ~ 4.1.0 -

II. Public POCs for CVE-2026-16644

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III. Intelligence Information for CVE-2026-16644

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Vendor Advisories for CVE-2026-16644 (1)

Same Patch Batch · Drupal · 2026-08-25 · 17 CVEs total

CVE-2026-15088 Development Environment - Critical - Unsupported - SA-CONTRIB-2026-089
CVE-2026-15917 Drupal core - Moderately critical - Cross-site scripting - SA-CORE-2026-011
CVE-2026-15916 Drupal core - Moderately critical - Information disclosure - SA-CORE-2026-010
CVE-2026-16641 Commerce Elavon - Critical - Unsupported - SA-CONTRIB-2026-084
CVE-2026-16643 Lunr exposed filters - Critical - Unsupported - SA-CONTRIB-2026-086
CVE-2026-16640 Search API Autocomplete - Moderately critical - Cross-site Scripting - SA-CONTRIB-2026-082
CVE-2026-16646 PanKM - Critical - Unsupported - SA-CONTRIB-2026-083
CVE-2026-16645 PhotoSwipe - Responsive JavaScript Modal Image Gallery - Moderately critical - Access bypa
CVE-2026-16638 Media Folders - Moderately critical - Cross site scripting - SA-CONTRIB-2026-080
CVE-2026-16639 Internationalization Single Sign-On - Critical - Access bypass - SA-CONTRIB-2026-081
CVE-2026-16642 Email Login OTP - Critical - Unsupported - SA-CONTRIB-2026-085
CVE-2026-18261 Powerful Surveys - Critical - Unsupported - SA-CONTRIB-2026-092
CVE-2026-18985 Edit in-place field - Moderately critical - Access bypass - SA-CONTRIB-2026-093
CVE-2026-18260 Disable Login Page - Moderately critical - Access bypass - SA-CONTRIB-2026-110
CVE-2026-18259 Token Content Access - Moderately critical - Access bypass - SA-CONTRIB-2026-090
CVE-2026-55805 Drupal core - Moderately critical - Cross-site scripting - SA-CORE-2026-012

IV. Related Vulnerabilities

Same vendor: Drupal
Same weakness: CWE-863

V. Comments for CVE-2026-16644

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