5.4 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.8 Medium
AI Score
Confidence
High
3.5 Low
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:S/C:N/I:P/A:N
0.001 Low
EPSS
Percentile
38.2%
# Exploit Title: WordPress Plugin Contact Form Check Tester 1.0.2 - Broken Access Control
# Date: 2/28/2021
# Author: 0xB9
# Software Link: https://wordpress.org/plugins/contact-fo...ck-tester/
# Version: 1.0.2
# Tested on: Windows 10
# CVE: CVE-2021-24247
1. Description:
The plugin settings are visible to all registered users in the dashboard.
A registered user can leave a payload in the plugin settings.
2. Proof of Concept:
- Register an account
- Navigate to the dashboard
- Go to CF7 Check Tester -> Settings
- Add a form
- Add a field to the form
- Put in a payload in either Field selector or Field value "><script>alert(1)</script>
- Save
Anyone who visits the settings page will execute the payload.
5.4 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.8 Medium
AI Score
Confidence
High
3.5 Low
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:S/C:N/I:P/A:N
0.001 Low
EPSS
Percentile
38.2%