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TI-2021-02829 Aliases CVE-2021-3920GHSA-86p4-m52q-r4qx

Cross-site Scripting (XSS) - Stored in getgrav/grav-plugin-admin

Priority LOW 27CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

grav-plugin-admin is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Why it matters now

EPSS 0.01374 72nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed getgrav/grav-plugin-admin (getgrav): 1.10.25

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
getgravgetgrav/grav-plugin-adminbefore 1.10.251.10.25Patch availableCNA
  • getgrav/grav-plugin-admin Vendorgetgrav Affected before 1.10.25 Fixed in 1.10.25 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:getgrav:grav-plugin-admin:*:*:*:*:*:*:*:*before 1.10.25Vulnerablegetgrav
  • cpe:2.3:a:getgrav:grav-plugin-admin:*:*:*:*:*:*:*:* Versions before 1.10.25 Vulnerable ·getgrav

Remediation

  • Fix · CNA getgrav/grav-plugin-admin (getgrav) Fixed in 1.10.25

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-3920
  2. 2026-10-03 Alias added: GHSA-86p4-m52q-r4qx

References

Exploit 1

Patch 1

  • TI-2021-04523 Unauthenticated Arbitrary YAML Write/Update leads to Code Execution CVSS 3.1CRITICAL 9.8
  • TI-2025-40781 Grav Admin Plugin vulnerable to User Enumeration & Email Disclosure CVSS 3.1MEDIUM 6.5
  • TI-2025-40782 Cross-site scripting in getgrav grav CVSS 4.0MEDIUM 6.8
  • TI-2025-40786 Cross-site scripting in getgrav grav CVSS 4.0MEDIUM 6.2
  • TI-2025-40785 Grav vulnerable to Cross-Site Scripting (XSS) Stored endpoint `/admin/pages/[page]` in Multiples parameters CVSS 4.0MEDIUM 6.2
  • TI-2025-40784 Cross-site scripting in getgrav grav CVSS 4.0MEDIUM 6.2
See all 8 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences