Path Traversal in getgrav/grav (CVE-2026-72697)
Summary
Path traversal in getgrav/grav (CVE-2026-72697). Confidential information can be exposed externally. Exploitable via txt. Mitigation: upgrade to 2.0.16 or later.
Original description
The description as published by the source.
Summary
The media_directory() Twig function is allow-listed for use in sandboxed, editor-authored page content (system/config/security.yaml). Its implementation, GravExtension::mediaDirFunc(), only treats the input as unsafe when it looks like a Grav stream (user://, theme://, etc). If the input is instead a plain filesystem path, absolute or relative, the stream check is skipped entirely and the raw string is handed straight to new Media($media_dir), which lists every file in that directory whose extension matches a configured media type (which by default includes txt, json, xml, pdf, doc, docx, and more, not just images) and builds Medium objects for them.
Separately, the sandbox's own allow-list for the Medium class includes the filepath accessor. A code comment directly above that allow-list entry states the developers' intent was for filepath to be part of the "dangerous surface" that "stays blocked", but it is listed as an allowed method on the very same line, contradicting that stated intent.
Combined, a user who can enter page content that gets processed as Twig (process.twig: true in frontmatter, or any modular page, which is unsandboxed and unconditional per the code comment in processPage()) can point media_directory() at any directory the web server process can read, anywhere on the filesystem, and both enumerate and read the content of any file in it whose extension is a recognized media type.
Affected product and v…
Source: NIST National Vulnerability Database NVD GitHub Advisory
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-2026-72697 has been found in getgrav/grav.
Attackers can target a specific entry point like txt over the network to misuse the product.
Confidential information can be exposed externally. CVSS score: 6.5/10.
What to do: upgrade getgrav/grav to 2.0.16 or later.
If unsure, ask your IT team or search "getgrav/grav CVE-2026-72697" on the vendor's site.
CVE-2026-72697 (getgrav/grav) — CWE-22 / CVSS v3 6.5
Attack vector: remote (network-reachable) / no user interaction
Attack surface: txt / json / xml / pdf
Patched: 2.0.16 — 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.
Path traversal (CWE-22) exists in getgrav/grav. Attackers reach the vulnerable code path via txt.
Check the vendor advisory for the affected versions of getgrav/grav. Attack surface: txt / json / xml / pdf.
Severity: Medium (CVSS 6.5/10). Confidential information can be exposed externally.
Update to 2.0.16.
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/grav' . 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/grav' . | 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/grav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/grav to 2.0.16ステージング環境で 2.0.16 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。
-
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。
Affected packages
References
- web github.com
- web disclosure@vulncheck.com
- web nvd.nist.gov
- web github.com
- web github.com