CVE-2020-36955: Grav CMS 1.6.30 Admin Plugin 1.9.18 - 'Page Title' Persistent Cross-Site Scripting

Published Jan 26, 2026
·
Updated

Grav CMS 1.6.30 with Admin Plugin 1.9.18 contains a persistent cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts through the page title field. Attackers can create a new page with a malicious script in the title, which will be executed when the page is viewed in the admin panel or on the site.

Affected Software

2 affected components
Grav Grav CMS
Grav Admin plugin

Event History

Jan 26, 2026
CVE Published
via MITRE·05:42 PM
Data Sourced
via MITRE·05:42 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·06:16 PM
DescriptionSeverityWeakness
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Frequently Asked Questions

1

What is the severity of CVE-2020-36955?

CVE-2020-36955 is classified as a medium severity vulnerability due to the potential for authenticated attackers to exploit it.

2

How do I fix CVE-2020-36955?

To fix CVE-2020-36955, update Grav CMS and the Admin Plugin to their latest versions to eliminate the persistent cross-site scripting vulnerability.

3

Who is affected by CVE-2020-36955?

CVE-2020-36955 affects users of Grav CMS version 1.6.30 with the Admin Plugin version 1.9.18.

4

What type of vulnerability is CVE-2020-36955?

CVE-2020-36955 is a persistent cross-site scripting (XSS) vulnerability that allows script injection through the page title field.

5

What can attackers do with CVE-2020-36955?

Attackers can exploit CVE-2020-36955 to inject malicious scripts that may execute in the context of authenticated users, potentially leading to data theft or other malicious activities.

Contact

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