Vulnerability · Published Jan 26, 2026 · Assigned by VulnCheck
CVE-2020-36955Grav CMS 1.6.30 Admin Plugin 1.9.18 - 'Page Title' Persistent Cross-Site Scripting
Medium 6.4
In plain English
A medium-severity cross-site scripting in Grav CMS Admin Plugin from Getgrav. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities).
Severity (CVSS 3.1)6.4Medium
Exploit odds (30 days)0.6%top 49.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Getgrav | Grav CMS Admin Plugin | 0 – through 1.9.18 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
References
- ExploitDB-49264 exploit
- Grav CMS Official Homepage product
- VulnCheck Advisory: Grav CMS 1.6.30 Admin Plugin 1.9.18 - 'Page Title' Persistent Cross-Site Scripting third-party-advisory