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Description

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.

PUBLISHED Reserved 2026-01-26 | Published 2026-01-26 | Updated 2026-01-26 | Assigner VulnCheck




MEDIUM: 5.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
MEDIUM: 6.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Problem types

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Any version
affected

Credits

Sagar Banwa finder

References

www.exploit-db.com/exploits/49264 (ExploitDB-49264) exploit

getgrav.org/ (Grav CMS Official Homepage) product

www.vulncheck.com/...e-title-persistent-cross-site-scripting (VulnCheck Advisory: Grav CMS 1.6.30 Admin Plugin 1.9.18 - 'Page Title' Persistent Cross-Site Scripting) third-party-advisory

cve.org (CVE-2020-36955)

nvd.nist.gov (CVE-2020-36955)

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