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in the custom CSS setting to execut","url":"https://cyberstrike.io/cve/CVE-2026-22209/","datePublished":"2026-03-13T19:54:11.003","dateModified":"2026-06-17T10:19:33.237","publisher":{"@id":"https://cyberstrike.io/#organization"},"isPartOf":{"@id":"https://cyberstrike.io/#website"},"about":{"@type":"SoftwareSourceCode","name":"CVE-2026-22209"},"keywords":["CVE-2026-22209","medium","CVSS 5.5","CWE-79"]},{"@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://cyberstrike.io"},{"@type":"ListItem","position":2,"name":"CVE Database","item":"https://cyberstrike.io/cve/"},{"@type":"ListItem","position":3,"name":"2026","item":"https://cyberstrike.io/cve/year/2026/"},{"@type":"ListItem","position":4,"name":"CVE-2026-22209","item":"https://cyberstrike.io/cve/CVE-2026-22209/"}]},{"@type":"FAQPage","mainEntity":[{"@type":"Question","name":"What is CVE-2026-22209?","acceptedAnswer":{"@type":"Answer","text":"CVE-2026-22209 is a medium-severity vulnerability. It was published on March 13, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM)."}},{"@type":"Question","name":"How severe is CVE-2026-22209?","acceptedAnswer":{"@type":"Answer","text":"This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation."}},{"@type":"Question","name":"How do I fix or remediate CVE-2026-22209?","acceptedAnswer":{"@type":"Answer","text":"Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions."}},{"@type":"Question","name":"How can CyberStrike help with CVE-2026-22209?","acceptedAnswer":{"@type":"Answer","text":"CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-22209 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize."}}]}]}

CVE-2026-22209

5.5 · MEDIUM

wpDiscuz before 7.6.47 contains a cross-site scripting vulnerability in the customCss field that allows administrators to inject malicious scripts by breaking out of style tags.

Published Mar 13, 2026CWE-79EPSS 0.23%

Overview

CVE-2026-22209 is a medium-severity vulnerability. It was published on March 13, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

wpDiscuz before 7.6.47 contains a cross-site scripting vulnerability in the customCss field that allows administrators to inject malicious scripts by breaking out of style tags. Attackers with admin access can inject payloads like </style><script>alert(1)</script> in the custom CSS setting to execute arbitrary JavaScript in user browsers.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwordpress.org/plugins/wpdiscuz/Refwordpress.org/plugins/wpdiscuz/#developersRefwww.vulncheck.com/advisories/wpdiscuz-before-cross-site-scripting-via-unescaped-custom-css-in-style-tag

How CyberStrike helps

Frequently asked questions

What is CVE-2026-22209?

CVE-2026-22209 is a medium-severity vulnerability. It was published on March 13, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-22209?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-22209?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-22209?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-22209 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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