Strategic Overview
- Status
- Patched in 1.0.3
- Affected Plugin
- Opensea
- Affected Version
<= 1.0.2- CVSS
- 5.5Medium
- Weakness type
- CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- CVE
CVE-2022-1228
At a glance
CVE-2022-1228 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Opensea WordPress plugin, affecting versions <= 1.0.2. It carries a CVSS score of 5.5 (reachable over the network; low attack complexity). The issue is fixed in version 1.0.3; sites on affected versions should update now. Disclosed April 2022, reported by Kévin Mosbahi (Mika).
Vulnerability Overview
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.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Reaching this weakness in Opensea <= 1.0.2 takes a caller who can reach the endpoint. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.
Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For Opensea the fix is 1.0.3: builds <= 1.0.2 are affected, anything from 1.0.3 onward is not.
Remediation
Update to version 1.0.3, or a newer patched version
How does WordSec protect against this?
The attempt arrives as an ordinary request to Opensea: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Opensea 1.0.3 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
Related records
Same weakness class
Other vulnerabilities in Opensea
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C