CVE-2022-1228: Opensea < 1.0.3 - Admin+ Stored XSS

Severity: medium (CVSS 4.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-04-25 · updated 2026-06-17
Weakness: CWE-79

Description

The Opensea WordPress plugin before 1.0.3 does not sanitize and escape some of its settings, like its "Referer address" field, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed.

Affected products

Opensea Project Opeansea: before 1.0.3 — fixed in 1.0.3

How to fix

Upgrade to a fixed version: Opensea Project Opeansea 1.0.3. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/ef6830c0-e933-4e62-8321-011d91f9cfea
https://wpscan.com/vulnerability/ef6830c0-e933-4e62-8321-011d91f9cfea

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