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CVE-2019-19634
critical
CVSS 9.8
Unrestricted File Upload in verot/class.upload.php (CVE-2019-19634)
Summary
vulnerability in verot/class.upload.php (CVE-2019-19634). Successful exploitation can lead to full system takeover.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2019-19634** has been found in verot/class.upload.php.
Successful exploitation can lead to full system takeover. CVSS score: 9.8/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "verot/class.upload.php CVE-2019-19634" on the vendor's site.
CVE-2019-19634 (verot/class.upload.php) — CWE-434 / CVSS v3 9.8
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
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.
❓ What is the problem
**A vulnerability** (CWE-434) exists in verot/class.upload.php.
📍 Affected scope
verot/class.upload.php — .
🔥 Severity
Severity: Critical (CVSS 9.8/10). Successful exploitation can lead to full system takeover
🔧 How to fix
Update to the patched release per vendor advisory.
🛡️ Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run `grep -r 'verot/class.upload.php' .` against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'verot/class.upload.php' . | 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 `verot/class.upload.php` を grep し、稼働しているサービス・バージョンを把握する。
-
7Post-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 Step 3 と同じログクエリでアラート再発が無いか継続監視。
Affected packages
composer
verot/class.upload.php
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
References
- web https://github.com/jra89/CVE-2019-19634
- web https://github.com/verot/class.upload.php/blob/2.0.4/src/class.upload.php#L3068
- web https://medium.com/%40jra8908/cve-2019-19634-arbitrary-file-upload-in-class-upload-php-ccaf9e13875e
- web https://nvd.nist.gov/vuln/detail/CVE-2019-19634
- web https://medium.com/@jra8908/cve-2019-19634-arbitrary-file-upload-in-class-upload-php-ccaf9e13875e
- web https://github.com/advisories/GHSA-2gc7-w4hw-rr2m