CVE-2026-1889
Outgrow <= 2.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'outgrow' Shortcode 'id' Attribute
CVSS Score
6.4
EPSS Score
0.0%
EPSS Percentile
0th
The Outgrow plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'id' attribute of the 'outgrow' shortcode in all versions up to, and including, 2.1. This is due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
| CWE | CWE-79 |
| Vendor | outgrow |
| Product | outgrow |
| Published | Mar 21, 2026 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
outgrow / Outgrow
0 ≤ 2.1
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/29e9ad80-6a02-494a-9d53-0f14728952aa?source=cve wordpress.org: https://wordpress.org/plugins/outgrow/ plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/outgrow/trunk/newOutgrow.php#L87 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/outgrow/tags/2.1/newOutgrow.php#L87
Credits
Youcef Hamdani