short.io
short.io has one disclosed vulnerability in the WordSec catalog, all reported in 2025; it remains unpatched as of September 2026. Their average CVSS score is 6.4, and the most serious one scores 6.4 out of 10.
The most common weakness is Cross-Site Scripting, behind 1 of the records (100%).
The one issue recorded for short.io has no published fix yet, which makes virtual patching the only reliable mitigation. The oldest unresolved one dates back to 2025.
All of these findings were reported by Peter Thaleikis. short.io is installed on roughly 200 WordPress sites, so each unpatched flaw has a wide blast radius. The current release is tested up to WordPress 6.7.7.
CVE-2025-58834short.io <= 2.4.0 - Authenticated (Contributor+) Stored Cross-Site Scripting
Read the full analysisVulnerability Records
short.io
Author
gugu
WP-Short.io is the easiest way to generate short links for your WordPress posts. It is a timesaving integration since you don’t need to copy a long link and manually shorten it on Short.io. Specify an API key (you’ll find it in your Short.io account), identify the post types to create short links for, and forget about it! WP-Short.io automatically shortens URLs for WordPress posts. After you finish writing a striking post, share it with your friends on social media. Now, instead of a long URL, a short and automatically generated link is already waiting for you. Just copy and send it! Feature Requests are welcome via https://feedback.short.cm/
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