CVE-2022-1228Network attack vector

Stored XSS via unsanitized Referer setting

Published Apr 25, 2022 · Updated Aug 2, 2024

Stored XSS in the Alex Moss Opensea WordPress plugin before 1.0.3 allows remote authenticated users to execute script via crafted settings. The Referer address setting is stored without input sanitization and rendered without output escaping, allowing injected markup to run in a viewer's browser. High-privilege access is required even when unfiltered_html is disabled, and execution requires a user to view the stored value.

CVSS severity4.8
Medium
EPSS probability0.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in the Alex Moss Opensea WordPress plugin before 1.0.3 allows remote authenticated users to execute script via crafted settings. The Referer address setting is stored without input sanitization and rendered without output escaping, allowing injected markup to run in a viewer's browser. High-privilege access is required even when unfiltered_html is disabled, and execution requires a user to view the stored value.

The record

CVE
CVE-2022-1228
Published
Apr 25, 2022
Updated
Aug 2, 2024
Vendor
Alex Moss
Product
Opensea
Classifications
CWE-79, CAPEC-592, T1189
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 25, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0.3 <1.0.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Alex Moss · Openseaversion=1.0.3 <1.0.3

Published CVSS scores

3.5NIST NVDAV:N/AC:M/Au:S/C:N/I:P/A:N
4.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-592Stored XSS
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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