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Product: WordPress plugin GravityForms
Product URL: http://www.gravityforms.com/
Vendor: Rocketgenius

Vulnerability Type: Reflected Cross-site Scripting (CWE-79)
Vulnerable Versions: 1.9.15.11 (other versions not tested)
Fixed Version: 1.9.16
Solution Status: Fixed by Vendor
Vendor Notification: 2016-01-21
Solution date: 2016-02-03
Public Disclosure: 2016-03-01

Vulnerability details:
- ----------------------

The software does not neutralize or incorrectly neutralizes user-controllable
input before it is placed in output that is used as a web page that is served to
users.

Steps to reproduce:
- -------------------

1. Log in to WordPress administrator panel with "Administrator" role
2. Open URL below:

http://example.org/wp-admin/admin.php?page=gf_settings&subview=%22%3E%3Cscript%3Ealert(1)%3C%2Fscript%3E%0A

Solution:
- ---------

Upgrade to 1.9.16 version.

References:
- -----------

https://www.gravityhelp.com/gravity-forms-v1-9-16-released/

Notes:
- ------

Please note that WordPress HTTP authentication cookie is using HttpOnly flag by
default.

Timeline:
- ---------

2016-01-21: Issue reported to vendor
2016-01-21: Vendor confirms the issue
2016-02-03: Vendor publishes new release
2016-02-29: CVE request
2016-03-01: MITRE responds that CVE request is out-of-scope of CVE's published priorities
2016-03-01: Public advisory

- -- 
Henri Salo
Security Specialist, Nixu Oy
Mobile: +358 40 770 5733
PL 39 FIN (Keilaranta 15)
FIN-02151 Espoo, Finland
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