CVE-2020-37256
Grav - Cross-Site Scripting in Admin Plugin Page Editor
- State
- Published
- Severity
- 5.1 Medium
- Published
- Jun 25, 2026
- Updated
- Oct 8, 2026
- Reserved
- Jun 22, 2026
Description
Grav before 1.6.30 contains a cross-site scripting vulnerability in the Admin plugin page editor default security configuration. Privileged users with page editing capabilities can inject malicious scripts to execute arbitrary code and install malicious plugins for system access.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.1 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N | VulnCheck |
| 3.1 | 5.4 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N | VulnCheck |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
GravGrav |
|
References
- GitHub Security Advisory (GHSA-cvmr-6428-87w9)vendor-advisory
- VulnCheck Advisory: Grav - Cross-Site Scripting in Admin Plugin Page Editorthird-party-advisory
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