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Vulnerability details: VCID-zjgb-dmh8-e7df
Vulnerability ID VCID-zjgb-dmh8-e7df
Aliases CVE-2017-6926
GHSA-2p28-5mvp-2j2r
Summary Drupal Comment reply form allows access to restricted content In Drupal versions 8.4.x versions before 8.4.5 users with permission to post comments are able to view content and comments they do not have access to, and are also able to add comments to this content. This vulnerability is mitigated by the fact that the comment system must be enabled and the attacker must have permission to post comments.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00375 https://api.first.org/data/v1/epss?cve=CVE-2017-6926
epss 0.00375 https://api.first.org/data/v1/epss?cve=CVE-2017-6926
epss 0.00375 https://api.first.org/data/v1/epss?cve=CVE-2017-6926
epss 0.00375 https://api.first.org/data/v1/epss?cve=CVE-2017-6926
epss 0.00375 https://api.first.org/data/v1/epss?cve=CVE-2017-6926
epss 0.00396 https://api.first.org/data/v1/epss?cve=CVE-2017-6926
epss 0.00396 https://api.first.org/data/v1/epss?cve=CVE-2017-6926
epss 0.00396 https://api.first.org/data/v1/epss?cve=CVE-2017-6926
epss 0.00396 https://api.first.org/data/v1/epss?cve=CVE-2017-6926
epss 0.00396 https://api.first.org/data/v1/epss?cve=CVE-2017-6926
epss 0.00396 https://api.first.org/data/v1/epss?cve=CVE-2017-6926
epss 0.00396 https://api.first.org/data/v1/epss?cve=CVE-2017-6926
epss 0.00396 https://api.first.org/data/v1/epss?cve=CVE-2017-6926
epss 0.00396 https://api.first.org/data/v1/epss?cve=CVE-2017-6926
epss 0.00396 https://api.first.org/data/v1/epss?cve=CVE-2017-6926
epss 0.00396 https://api.first.org/data/v1/epss?cve=CVE-2017-6926
epss 0.00396 https://api.first.org/data/v1/epss?cve=CVE-2017-6926
epss 0.00396 https://api.first.org/data/v1/epss?cve=CVE-2017-6926
epss 0.00396 https://api.first.org/data/v1/epss?cve=CVE-2017-6926
epss 0.00396 https://api.first.org/data/v1/epss?cve=CVE-2017-6926
epss 0.00396 https://api.first.org/data/v1/epss?cve=CVE-2017-6926
epss 0.00396 https://api.first.org/data/v1/epss?cve=CVE-2017-6926
epss 0.00396 https://api.first.org/data/v1/epss?cve=CVE-2017-6926
epss 0.00396 https://api.first.org/data/v1/epss?cve=CVE-2017-6926
epss 0.00396 https://api.first.org/data/v1/epss?cve=CVE-2017-6926
epss 0.00396 https://api.first.org/data/v1/epss?cve=CVE-2017-6926
epss 0.00396 https://api.first.org/data/v1/epss?cve=CVE-2017-6926
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-2p28-5mvp-2j2r
cvssv3.1 8.1 https://github.com/drupal/core
generic_textual HIGH https://github.com/drupal/core
cvssv3.1 8.1 https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2017-6926.yaml
generic_textual HIGH https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2017-6926.yaml
cvssv3.1 8.1 https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2017-6926.yaml
generic_textual HIGH https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2017-6926.yaml
cvssv2 5.5 https://nvd.nist.gov/vuln/detail/CVE-2017-6926
cvssv3 8.1 https://nvd.nist.gov/vuln/detail/CVE-2017-6926
cvssv3.1 8.1 https://nvd.nist.gov/vuln/detail/CVE-2017-6926
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2017-6926
cvssv3.1 8.1 https://www.drupal.org/sa-core-2018-001
generic_textual HIGH https://www.drupal.org/sa-core-2018-001
Reference id Reference type URL
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-6926
https://api.first.org/data/v1/epss?cve=CVE-2017-6926
https://github.com/drupal/core
https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2017-6926.yaml
https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2017-6926.yaml
https://nvd.nist.gov/vuln/detail/CVE-2017-6926
https://www.drupal.org/sa-core-2018-001
https://www.drupal.org/SA-CORE-2018-001
cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:*
GHSA-2p28-5mvp-2j2r https://github.com/advisories/GHSA-2p28-5mvp-2j2r
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N Found at https://github.com/drupal/core
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N Found at https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2017-6926.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N Found at https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2017-6926.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:L/Au:S/C:P/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2017-6926
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2017-6926
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2017-6926
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N Found at https://www.drupal.org/sa-core-2018-001
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.5841
EPSS Score 0.00375
Published At Sept. 16, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T09:12:57.370422+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-2p28-5mvp-2j2r/GHSA-2p28-5mvp-2j2r.json 37.0.0