Information Disclosure in verbb/formie (CVE-2026-76089)
Summary
Vulnerability in verbb/formie (CVE-2026-76089). Confidential information can be exposed externally. Exploitable via SentNotification. Mitigation: upgrade to 2.2.23 or later.
Original description
The description as published by the source.
Impact
The control panel action formie/sent-notifications/get-resend-modal-content (SentNotificationsController::actionGetResendModalContent) performed only requireAcceptsJson() and loaded a SentNotification by request id without permission or object-level authorization checks.
Any authenticated user who could invoke the action could enumerate notification IDs and read full email content — including recipient headers and the complete HTML body containing submitted form data (PII) — without formie-accessSentNotifications or equivalent permission. Sibling actions in the same controller enforced authorization.
Patches
Fixed in 3.1.31 (Craft 5) and 2.2.23 (Craft 4).
Craft 5: canView() is enforced after loading, consistent with actionEdit.
Craft 4: formie-viewSentNotifications permission is required.
Workarounds
Restrict CP access to trusted users only until upgraded. No configuration workaround.
- Reported by Jorge González (jorge@jmilla.es)
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-2026-76089 has been found in verbb/formie.
Attackers can target a specific entry point like SentNotification over the network to misuse the product.
Confidential information can be exposed externally. CVSS score: 7.7/10.
What to do: upgrade verbb/formie to 2.2.23 or later.
If unsure, ask your IT team or search "verbb/formie CVE-2026-76089" on the vendor's site.
CVE-2026-76089 (verbb/formie) — CWE-200 / CVSS v3 7.7
Attack vector: remote (network-reachable) / no user interaction
Attack surface: SentNotification / actionEdit
Patched: 2.2.23 — 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.
Information disclosure (CWE-200) exists in verbb/formie. Attackers reach the vulnerable code path via SentNotification.
Check the vendor advisory for the affected versions of verbb/formie. Attack surface: SentNotification / actionEdit.
Severity: High (CVSS 7.7/10). Confidential information can be exposed externally.
Update to 2.2.23.
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 'verbb/formie' . 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 'verbb/formie' . | 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
verbb/formie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 verbb/formie to 2.2.23ステージング環境で 2.2.23 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。
Affected packages
References
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