medium
6.1
CWE
79
Advisory Published
Advisory Published
Updated

CVE-2017-12156: XSS

First published: Mon Sep 18 2017(Updated: )

Moodle 3.x has XSS in the contact form on the "non-respondents" page in non-anonymous feedback.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
composer/moodle/moodle<=3.1.7
3.1.8
composer/moodle/moodle>=3.2.0<=3.2.4
3.2.5
composer/moodle/moodle>=3.3.0<=3.3.1
3.3.2
Moodle=3.0.0
Moodle=3.0.0-beta
Moodle=3.0.0-rc1
Moodle=3.0.0-rc2
Moodle=3.0.0-rc3
Moodle=3.0.0-rc4
Moodle=3.0.1
Moodle=3.0.2
Moodle=3.0.3
Moodle=3.0.4
Moodle=3.0.5
Moodle=3.0.6
Moodle=3.0.7
Moodle=3.0.8
Moodle=3.0.9
Moodle=3.0.10
Moodle=3.1.0
Moodle=3.1.0-beta
Moodle=3.1.0-rc1
Moodle=3.1.0-rc2
Moodle=3.1.1
Moodle=3.1.2
Moodle=3.1.3
Moodle=3.1.4
Moodle=3.1.5
Moodle=3.1.6
Moodle=3.1.7
Moodle=3.1.8
Moodle=3.2.0
Moodle=3.2.0-beta
Moodle=3.2.0-rc1
Moodle=3.2.0-rc2
Moodle=3.2.0-rc3
Moodle=3.2.0-rc4
Moodle=3.2.0-rc5
Moodle=3.2.1
Moodle=3.2.2
Moodle=3.2.3
Moodle=3.2.4
Moodle=3.2.5
Moodle=3.3.0
Moodle=3.3.1
Moodle=3.3.2

Remedy

https://moodle.org/mod/forum/discuss.php?d=358585

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2017-12156?

    CVE-2017-12156 is classified as a cross-site scripting (XSS) vulnerability which can potentially allow attackers to execute arbitrary scripts in the context of the user's browser.

  • How do I fix CVE-2017-12156?

    To fix CVE-2017-12156, upgrade Moodle to version 3.1.8 or 3.2.5 or later, as these versions provide the necessary security patches.

  • What versions of Moodle are affected by CVE-2017-12156?

    CVE-2017-12156 affects Moodle versions 3.0.0 through 3.3.1.

  • What type of attack can CVE-2017-12156 facilitate?

    CVE-2017-12156 can facilitate cross-site scripting (XSS) attacks, allowing malicious users to inject scripts into web pages viewed by other users.

  • Is user input a factor in CVE-2017-12156?

    Yes, the vulnerability occurs due to improper handling of user input in the contact form on the 'non-respondents' page.

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