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CVE-2018-11564

4.8 · MEDIUM

Stored XSS in YOOtheme Pagekit 1.0.13 and earlier allows a user to upload malicious code via the picture upload feature.

Published Jun 2, 2018CWE-79EPSS 3.10%

Overview

CVE-2018-11564 is a medium-severity vulnerability. It was published on June 2, 2018 and has a CVSS 3.0 base score of 4.8 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 4.8, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Stored XSS in YOOtheme Pagekit 1.0.13 and earlier allows a user to upload malicious code via the picture upload feature. A user with elevated privileges could upload a photo to the system in an SVG format. This file will be uploaded to the system and it will not be stripped or filtered. The user can create a link on the website pointing to "/storage/poc.svg" that will point to http://localhost/pagekit/storage/poc.svg. When a user comes along to click that link, it will trigger a XSS attack.

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

Refruffsecurity.blogspot.com/2018/05/my-first-cve-found.htmlRefpacketstormsecurity.com/files/148001/PageKit-CMS-1.0.13-Cross-Site-Scripting.htmlRefwww.exploit-db.com/exploits/44837/Refruffsecurity.blogspot.com/2018/05/my-first-cve-found.htmlRefpacketstormsecurity.com/files/148001/PageKit-CMS-1.0.13-Cross-Site-Scripting.htmlRefwww.exploit-db.com/exploits/44837/

How CyberStrike helps

Frequently asked questions

What is CVE-2018-11564?

CVE-2018-11564 is a medium-severity vulnerability. It was published on June 2, 2018 and has a CVSS 3.0 base score of 4.8 (MEDIUM).

How severe is CVE-2018-11564?

This vulnerability has a CVSS 3.0 base score of 4.8, 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-2018-11564?

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-2018-11564?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-11564 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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