CVE-2020-37256: 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

mediumCVSS 5.4CVE-2020-37256

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.

Details

Source: NVD Recent CVEs (US · database · site)
Severity: medium — CVSS 5.4
Published: 2026-06-25
Last updated: 2026-06-27
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2020-37256

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2020-372560.17% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 6% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2020-37256	coverage & exploitation status	NVD · CVE.org

Recent advisories for Grav

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

mediumCVE-2026-61454: The Grav Admin2 plugin (getgrav/grav-plugin-admin2) before 2.0.4 embeds a global JavaScript va…nvd · 2026-07-11
mediumCVE-2026-59193: Grav is a file-based Web platform. Prior to 2.0.0, an authenticated admin.super user can crash…nvd · 2026-07-10
unknownCVE-2026-59190: grav-plugin-admin is an HTML user interface that provides a way to configure Grav and create a…nvd · 2026-07-10
unknownCVE-2026-58493: grav-plugin-database is the database plugin for Grav CMS. Prior to 1.2.0, Database::__call bui…nvd · 2026-07-10
unknownCVE-2026-58492: grav-plugin-database is the database plugin for Grav CMS. Prior to 1.2.0, the PDO::tableExists…nvd · 2026-07-10
mediumCVE-2026-55890: Grav is a file-based Web platform. Prior to 2.0.0-rc.9, Grav's incomplete fix for stored XSS t…nvd · 2026-07-10

CVE-2020-37256: 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

Details

Exploitation outlook

Referenced CVEs

Recent advisories for Grav

More from NVD Recent CVEs