Vulnerability · Published Mar 21, 2026 · Assigned by Wordfence

CVE-2026-1889Outgrow <= 2.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'outgrow' Shortcode 'id' Attribute

Medium 6.4

In plain English

A medium-severity cross-site scripting in Outgrow from outgrow. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).

Severity (CVSS 3.1)6.4Medium

Exploit odds (30 days)0.3%top 83.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
outgrow	Outgrow	0 – through 2.1

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

In plain English

Official description

Affected products (as reported)

References