QR Redirector < 1.6.1 – Contributor+ Stored Cross-Site Scripting | CVE 2021-24854 | Plugin Vulnerabilities

Description

The plugin does not sanitise and escape some of the QR Redirect fields, which could allow users with a role as low as Contributor perform Stored Cross-Site Scripting attacks.

Proof of Concept

As a contributor, create/edit a "QR Redirect" and set the following fields:

"URL to Redirect to": https://example.com/#" style="animation-name:rotation" onanimationend="alert(/XSS-URL/)//
"Admin Notes": </textarea><script>alert(/XSS-admin-notes/)</script>

The XSS will be triggered when any user access the QR Redirect (for example an admin reviewing it)

Affects Plugins

Fixed in 1.6.1

References

CVE

Classification

Type

XSS

OWASP top 10

A7: Cross-Site Scripting (XSS)

CWE

CVSS

Miscellaneous

Original Researcher

apple502j

Submitter

apple502j

Verified

Yes

WPVDB ID

0d422397-69ff-4d05-aafa-7a572e460e5f

Timeline

Publicly Published

2021-10-18 (about 4 years ago)

Added

2021-10-18 (about 4 years ago)

Last Updated

2022-04-15 (about 3 years ago)

Other

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2024-06-28

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