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Vulnerability details: VCID-es39-uyu2-myap
Vulnerability ID VCID-es39-uyu2-myap
Aliases CVE-2017-6927
GHSA-585j-5449-mf5m
Summary JavaScript cross-site scripting prevention is incomplete Drupal has a Drupal.checkPlain() JavaScript function which is used to escape potentially dangerous text before outputting it to HTML (as JavaScript output is not auto-escaped by either Drupal 7 or Drupal 8). This function does not correctly handle all methods of injecting malicious HTML, leading to a cross-site scripting vulnerability under certain circumstances. The PHP functions which Drupal provides for HTML escaping are not affected.
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.0139 https://api.first.org/data/v1/epss?cve=CVE-2017-6927
cvssv3.1 6.1 https://github.com/drupal/core
generic_textual MODERATE https://github.com/drupal/core
cvssv3.1 6.1 https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2017-6927.yaml
generic_textual MODERATE https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2017-6927.yaml
cvssv3.1 6.1 https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2017-6927.yaml
generic_textual MODERATE https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2017-6927.yaml
cvssv3.1 6.1 https://lists.debian.org/debian-lts-announce/2018/02/msg00030.html
generic_textual MODERATE https://lists.debian.org/debian-lts-announce/2018/02/msg00030.html
cvssv3.1 6.1 https://nvd.nist.gov/vuln/detail/CVE-2017-6927
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2017-6927
cvssv3.1 6.1 https://www.debian.org/security/2018/dsa-4123
generic_textual MODERATE https://www.debian.org/security/2018/dsa-4123
cvssv3.1 6.1 https://www.drupal.org/sa-core-2018-001
generic_textual MODERATE https://www.drupal.org/sa-core-2018-001
cvssv3.1 6.1 http://www.securityfocus.com/bid/103138
generic_textual MODERATE http://www.securityfocus.com/bid/103138
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2017-6927
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-6927
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-6928
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-6929
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-6932
https://github.com/drupal/core
https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2017-6927.yaml
https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2017-6927.yaml
https://lists.debian.org/debian-lts-announce/2018/02/msg00030.html
https://nvd.nist.gov/vuln/detail/CVE-2017-6927
https://www.debian.org/security/2018/dsa-4123
https://www.drupal.org/sa-core-2018-001
https://www.drupal.org/SA-CORE-2018-001
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=2017-6927
http://www.securityfocus.com/bid/103138
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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

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high

none

required

unchanged

changed

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low

none

high

low

none

high

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none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2017-6927.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:N/UI:R/S:C/C:L/I:L/A:N Found at https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2017-6927.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

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none

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none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at https://lists.debian.org/debian-lts-announce/2018/02/msg00030.html
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:N/UI:R/S:C/C:L/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2017-6927
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:N/UI:R/S:C/C:L/I:L/A:N Found at https://www.debian.org/security/2018/dsa-4123
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:N/UI:R/S:C/C:L/I:L/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
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Found at http://www.securityfocus.com/bid/103138
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 0.80691
EPSS Score 0.0139
Published At June 4, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-02T04:37:33.451655+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/drupal/core/CVE-2017-6927.yml 38.6.0