Cross-Site Scripting (XSS) in Getgrav (CVE-2025-66311)
Summary
Cross-site scripting in Getgrav (CVE-2025-66311). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 1.11.0-beta.1 or later.
Original description
The description as published by the source.
This admin plugin for Grav is an HTML user interface that provides a convenient way to configure Grav and easily create and modify pages. Prior to 1.11.0-beta.1, a Stored Cross-Site Scripting (XSS) vulnerability was identified in the /admin/pages/[page] endpoint of the Grav application. This vulnerability allows attackers to inject malicious scripts into the data[header][metadata], data[header][taxonomy][category], and data[header][taxonomy][tag] parameters. These scripts are stored in the page frontmatter and executed automatically whenever the affected page is accessed or rendered in the administrative interface. This vulnerability is fixed in 1.11.0-beta.1.
Source: NIST National Vulnerability Database NVD
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2025-66311 has been found in Getgrav.
Risk of unauthorized operations or information disclosure. CVSS score: 5.4/10.
What to do: upgrade Getgrav to 1.11.0-beta.1 or later.
If unsure, ask your IT team or search "Getgrav CVE-2025-66311" on the vendor's site.
CVE-2025-66311 (Getgrav) — CWE-79 / CVSS v3 5.4
Attack vector: remote (network-reachable)
Patched: 1.11.0-beta.1 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
Cross-site scripting (XSS) (CWE-79) exists in Getgrav.
Check the vendor advisory for the affected versions of Getgrav.
Severity: Medium (CVSS 5.4/10). Risk of unauthorized operations or information disclosure.
Update to 1.11.0-beta.1.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'Getgrav' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
grep -r 'Getgrav' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
Getgravを grep し、稼働しているサービス・バージョンを把握する。 -
2Apply patch patch
Upgrade Getgrav to 1.11.0-beta.1ステージング環境で 1.11.0-beta.1 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
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3Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
References
- exploit github.com
- patch security-advisories@github.com