CVE-2015-1840

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2015-07-26 · updated 2026-06-17
Weakness: CWE-200

Description

jquery_ujs.js in jquery-rails before 3.1.3 and 4.x before 4.0.4 and rails.js in jquery-ujs before 1.0.4, as used with Ruby on Rails 3.x and 4.x, allow remote attackers to bypass the Same Origin Policy, and trigger transmission of a CSRF token to a different-domain web server, via a leading space character in a URL within an attribute value.

Affected products

Fedoraproject Fedora: 21, 22
Opensuse: 13.1, 13.2
rubyonrails Jquery-Rails: through 3.1.2; 4.0.0, 4.0.1
rubyonrails Jquery-Ujs: through 1.0.3

References

http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160906.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-June/161043.html
http://lists.opensuse.org/opensuse-updates/2015-07/msg00041.html
http://openwall.com/lists/oss-security/2015/06/16/15
http://www.securityfocus.com/bid/75239
https://github.com/rails/jquery-rails/blob/master/CHANGELOG.md
https://github.com/rails/jquery-ujs/blob/master/CHANGELOG.md
https://groups.google.com/forum/message/raw?msg=rubyonrails-security/XIZPbobuwaY/fqnzzpuOlA4J
http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160906.html
http://lists.fedoraproject.org/pipermail/package-announce/2015-June/161043.html
http://lists.opensuse.org/opensuse-updates/2015-07/msg00041.html
http://openwall.com/lists/oss-security/2015/06/16/15

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