Drupal 8.4.x versions before 8.4.5 and Drupal 7.x versions before 7.57 has a Drupal.checkPlain() JavaScript function which is used to escape potentially dangerous text before outputting it to HTML (as JavaScript output does not typically go through Twig autoescaping). 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.

-     [8.4.6](https://www.drupal.org/project/drupal/releases/8     .4.6)

  - [SA-CORE-2018-002     (CVE-2018-7600)](https://www.drupal.org/SA-CORE-2018-002     )

  -     [8.4.5](https://www.drupal.org/project/drupal/releases/8     .4.5)

  - [SA-CORE-2018-001 (CVE-2017-6926 / CVE-2017-6927 /     CVE-2017-6930 /     CVE-2017-6931)](https://www.drupal.org/SA-CORE-2018-001)

  -     [8.4.4](https://www.drupal.org/project/drupal/releases/8     .4.4)

  -     [8.4.3](https://www.drupal.org/project/drupal/releases/8     .4.3)

  -     [8.4.2](https://www.drupal.org/project/drupal/releases/8     .4.2)

  -     [8.4.1](https://www.drupal.org/project/drupal/releases/8     .4.1)

  -     [8.4.0](https://www.drupal.org/project/drupal/releases/8     .4.0)

  -     [8.4.0-rc2](https://www.drupal.org/project/drupal/releas     es/8.4.0-rc2)

  -     [8.4.0-rc1](https://www.drupal.org/project/drupal/releas     es/8.4.0-rc1)

  -     [8.4.0-beta1](https://www.drupal.org/project/drupal/rele     ases/8.4.0-beta1)

  -     [8.4.0-alpha1](https://www.drupal.org/project/drupal/rel     eases/8.4.0-alpha1)

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to its self-reported version number, the detected Drupal application is affected by multiple vulnerabilities :

 - A flaw exists with the Comment Reply Form. An authenticated remote attacker could add or view comments that they do not have access to. (CVE-2017-6926)

 - A flaw exists with the Drupal.checkPlain() function due to improper handling of HTML injection. A remote attacker, with a specially crafted request, could potentially execute arbitrary script code within the trust relationship between the browser and server. (CVE-2017-6927)

 - A flaw exists with node access controls with a multilingual site due to defaulting to the untranslated version as a fallback. A remote attacker could potentially bypass access restrictions. (CVE-2017-6930)

 - A flaw exists with the Settings Tray module. A remote attacker could update data the do not have permission for. (CVE-2017-6931)

Note that the scanner has not tested for these issues but has instead relied only on the application's self-reported version number.

-     [8.3.9](https://www.drupal.org/project/drupal/releases/8     .3.9)

  - [SA-CORE-2018-002     (CVE-2018-7600)](https://www.drupal.org/SA-CORE-2018-002     )

  -     [8.3.8](https://www.drupal.org/project/drupal/releases/8     .3.8)

  - [SA-CORE-2018-001 (CVE-2017-6926 / CVE-2017-6927 /     CVE-2017-6930 /     CVE-2017-6931)](https://www.drupal.org/SA-CORE-2018-001)

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to its self-reported version, the instance of Drupal running on the remote web server is 8.x prior to 8.4.5. It is, therefore, affected by multiple vulnerabilities :

  - A flaw exists with the Comment Reply Form. An authenticated remote     attacker could add or view comments that they do not have access     to. (CVE-2017-6926)

  - A flaw exists with the Drupal.checkPlain() function due to     improper handling of HTML injection. A remote attacker, with a     specially crafted request, could potentially execute arbitrary     script code within the trust relationship between the browser and     server. (CVE-2017-6927)

  - A flaw exists with node access controls with a multilingual site     due to defaulting to the untranslated version as a fallback. A     remote attacker could potentially bypass access restrictions.
    (CVE-2017-6930)

  - A flaw exists with the Settings Tray module. A remote attacker     could update data the do not have permission for. (CVE-2017-6931)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to its self-reported version, the instance of Drupal running on the remote web server is 7.x prior to 7.57. It is, therefore, affected by multiple vulnerabilities :

  - A flaw exists with the Drupal.checkPlain() function due to     improper handling of HTML injection. A remote attacker, with a     specially crafted request, could potentially execute arbitrary     script code within the trust relationship between the browser and     server. (CVE-2017-6927)

  - A flaw exists with the private file system due to improper checking     of permissions when modules provided conflicting access. A remote     attacker could potentially access sensitive files. (CVE-2017-6928)

  - A flaw exists with the bundled jQuery due to improper handling of     Ajax requests. A remote attacker, with a specially crafted request,     could potentially execute arbitrary script code within the trust     relationship between the browser and server. (CVE-2017-6929)

  - A flaw exists with the language switcher block due to improper     validation of user input. A context-dependent attacker, with a     specially crafted link, could redirect a user to a malicious site.
    (CVE-2017-6932)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Multiple vulnerabilities have been found in the Drupal content management framework. For additional information, please refer to the upstream advisory at https://www.drupal.org/sa-core-2018-001.

For Debian 7 'Wheezy', these problems have been fixed in version 7.14-2+deb7u17.

We recommend that you upgrade your drupal7 packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Drupal Security Team reports :

CVE-2017-6926: Comment reply form allows access to restricted content

CVE-2017-6927: JavaScript cross-site scripting prevention is incomplete

CVE-2017-6928: Private file access bypass - Moderately Critical

CVE-2017-6929: jQuery vulnerability with untrusted domains - Moderately Critical

CVE-2017-6930: Language fallback can be incorrect on multilingual sites with node access restrictions

CVE-2017-6931: Settings Tray access bypass

CVE-2017-6932: External link injection on 404 pages when linking to the current page

Multiple vulnerabilities have been found in the Drupal content management framework. For additional information, please refer to the upstream advisory at https://www.drupal.org/sa-core-2018-001

ID	Name	Product	Family	Severity
120615	Fedora 28 : drupal8 (2018-906ba26b4d) (Drupalgeddon 2)	Nessus	Fedora Local Security Checks	critical
98563	Drupal 7.x < 7.57 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	high
98562	Drupal 8.x < 8.4.5 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	high
98561	Drupal 8.5.x < 8.5.0-rc1 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	high
109288	Fedora 26 : drupal8 (2018-922cc2fbaa) (Drupalgeddon 2)	Nessus	Fedora Local Security Checks	critical
107089	Drupal 8.x < 8.4.5 Multiple Vulnerabilities (SA-CORE-2018-001)	Nessus	CGI abuses	high
107088	Drupal 7.x < 7.57 Multiple Vulnerabilities (SA-CORE-2018-001)	Nessus	CGI abuses	medium
107076	Debian DLA-1295-1 : drupal7 security update	Nessus	Debian Local Security Checks	medium
106994	FreeBSD : drupal -- Drupal Core - Multiple Vulnerabilities (57580fcc-1a61-11e8-97e0-00e04c1ea73d)	Nessus	FreeBSD Local Security Checks	high
106986	Debian DSA-4123-1 : drupal7 - security update	Nessus	Debian Local Security Checks	medium

Detections

Analytics

CVE-2017-6927

medium

Tenable Plugins

critical

high

high

high

critical

high

medium

medium

high

medium