CVE-2018-5233

Severity: medium (CVSS 6.1 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2018-03-19 · updated 2026-06-17
Weakness: CWE-79

Description

Cross-site scripting (XSS) vulnerability in system/src/Grav/Common/Twig/Twig.php in Grav CMS before 1.3.0 allows remote attackers to inject arbitrary web script or HTML via the PATH_INFO to admin/tools.

Affected products

getgrav Grav Cms: before 1.3.0 — fixed in 1.3.0

How to fix

Upgrade to a fixed version: getgrav Grav Cms 1.3.0. Check the vendor advisory for mitigations.

References

http://www.openwall.com/lists/oss-security/2018/03/15/1
https://sysdream.com/news/lab/2018-03-15-cve-2018-5233-grav-cms-admin-plugin-reflected-cross-site-scripting-xss-vulnerability/
http://www.openwall.com/lists/oss-security/2018/03/15/1
https://sysdream.com/news/lab/2018-03-15-cve-2018-5233-grav-cms-admin-plugin-reflected-cross-site-scripting-xss-vulnerability/

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