Medium severity · published Apr 18, 2026
CVE-2026-1559
Youzify <= 1.3.6 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'checkin_place_id' Parameter
6.4
CVSS
0.2%
EPSS
No
On KEV
Description
The Youzify plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'checkin_place_id' parameter in all versions up to, and including, 1.3.6 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
YB
Youzify – BuddyPress Community, User Profile, Social Network & Membership Plugin for WordPress · youzify
through 1.3.6 · source: vendor
Affected product
YB
Youzify – BuddyPress Community, User Profile, Social Network & Membership Plugin for WordPress
youzify
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-1559
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-1559
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/youzify/tags/1.3.6/includes/public/core/class-youzify-wall.php#L109
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/youzify/tags/1.3.6/includes/public/core/wall/class-youzify-form.php#L506
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/youzify/trunk/includes/public/core/class-youzify-wall.php#L109
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/youzify/trunk/includes/public/core/wall/class-youzify-form.php#L506
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset/3483281/youzify/trunk/includes/public/core/wall/class-youzify-form.php
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset?old_path=%2Fyouzify/tags/1.3.6&new_path=%2Fyouzify/tags/1.3.7
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