Vulnerability-Lookup

GHSA-GWRH-R2G6-7WGP

Vulnerability from github – Published: 2026-06-26 00:32 – Updated: 2026-06-26 00:32

Details

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.

Severity ?

5.4 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

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

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2020-37256"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-25T22:16:58Z",
    "severity": "MODERATE"
  },
  "details": "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.",
  "id": "GHSA-gwrh-r2g6-7wgp",
  "modified": "2026-06-26T00:32:04Z",
  "published": "2026-06-26T00:32:04Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/getgrav/grav/security/advisories/GHSA-cvmr-6428-87w9"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-37256"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/grav-cross-site-scripting-in-admin-plugin-page-editor"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2020-37256 (GCVE-0-2020-37256)

Vulnerability from cvelistv5 – Published: 2026-06-25 21:41 – Updated: 2026-06-27 02:27

Title

Grav - Cross-Site Scripting in Admin Plugin Page Editor

Summary

Severity ?

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

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

VulnCheck

References

URL

Tags

	https://github.com/getgrav/grav/security/advisori…	vendor-advisory
	https://www.vulncheck.com/advisories/grav-cross-s…	third-party-advisory

Impacted products

	Vendor	Product	Version
	Grav	Grav	Affected: 0 , < 1.6.30 (semver) Unaffected: 1.6.30 (semver)

Credits

ShrubberyRubbery

Show details on NVD website

JSON

To clipboard

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    "adp": [
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        "metrics": [
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            "other": {
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                "id": "CVE-2020-37256",
                "options": [
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                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-27T02:27:40.463020Z",
                "version": "2.0.3"
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                }
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              "operator": "OR"
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          "type": "analyst",
          "value": "ShrubberyRubbery"
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        },
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          "name": "VulnCheck Advisory: Grav - Cross-Site Scripting in Admin Plugin Page Editor",
          "tags": [
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          "url": "https://www.vulncheck.com/advisories/grav-cross-site-scripting-in-admin-plugin-page-editor"
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-GWRH-R2G6-7WGP

CVE-2020-37256 (GCVE-0-2020-37256)

Tags

Sightings

Nomenclature