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Servers and applications

CVE-2016-3165

The Form API in Drupal 6.x before 6.38 ignores access restrictions on submit buttons, which might allow remote attackers to bypass intended access restrictions by leveraging permission to submit a form with a button that has "#access" set to FALSE in the server-side form definition.

Severity
High 7.5
Published
12 Apr 2016
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
1.4% in the next 30 daysHigher than 72% of CVEs. EPSS by FIRST, 11 Nov 2026
Weakness
Improper access control (CWE-284)
Attack
Over the network · No login needed · No user action needed
Attacker can
Change data
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Sources
NVD

Affected software

SoftwareAffected versions
DrupalServers and applications · cpe:a:drupal:drupal
  • Version 6.37
  • Version 6.36
  • Version 6.35
  • Version 6.34
All 47 release lines
  • Version 6.0-dev
  • Version 6.0-beta1
  • Version 6.0-beta2
  • Version 6.0-beta3
  • Version 6.0-beta4
  • Version 6.0-rc1
  • Version 6.0-rc2
  • Version 6.0-rc3
  • Version 6.0-rc4
  • Version 6.0
  • Version 6.1
  • Version 6.2
  • Version 6.3
  • Version 6.4
  • Version 6.5
  • Version 6.6
  • Version 6.7
  • Version 6.8
  • Version 6.9
  • Version 6.10
  • Version 6.11
  • Version 6.12
  • Version 6.13
  • Version 6.14
  • Version 6.15
  • Version 6.16
  • Version 6.17
  • Version 6.18
  • Version 6.19
  • Version 6.20
  • Version 6.21
  • Version 6.22
  • Version 6.23
  • Version 6.24
  • Version 6.25
  • Version 6.26
  • Version 6.27
  • Version 6.28
  • Version 6.29
  • Version 6.30
  • Version 6.31
  • Version 6.32
  • Version 6.33
  • Version 6.34
  • Version 6.35
  • Version 6.36
  • Version 6.37

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2016-3165
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2016-3165