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WordPress Plugin Vulnerabilities

Sign-up Sheets < 1.0.14 - Authenticated Stored Cross-Site Scripting (XSS)

Description

The plugin did not sanitise or escape some of its fields when creating a new sheet, allowing high privilege users to add JavaScript in them, leading to a Stored Cross-Site Scripting issue. The payloads will be triggered when viewing the 'All Sheets' page in the admin dashboard

Proof of Concept

As admin, add a new Sheet and add the following payload in the "Title", "Details" and "Task" fields: <script>alert("Test")</script>

The XSS will be trigger whenever an admin goes to the All Sheets page. 

Affects Plugins

sign-up-sheets
Fixed in version 1.0.14

References

CVE
CVE-2021-24440

Classification

Type

XSS

OWASP top 10
A7: Cross-Site Scripting (XSS)
CWE
CWE-79

Miscellaneous

Original Researcher

Ajay Sandipan Thorbole

Submitter

Ajay Sandipan Thorbole

Submitter twitter
ajay_thorbole
Verified

Yes

WPVDB ID
ba4503f7-684e-4274-bc53-3aa848712496

Timeline

Publicly Published

2021-06-21 (about 1 years ago)

Added

2021-06-21 (about 1 years ago)

Last Updated

2021-06-25 (about 1 years ago)

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