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Server-Side Request Forgery (SSRF)Weakness · CWE-918

CVE-2026-67530

MEDIUM · 6.4 CVSS v3.1 Published 2026-07-30
Patch available
A vendor patch is available. No clean upgrade release — apply the published patch.
See remediation →
70/100
Remediation priority · Elevated
Remotely reachable Zero-click Patch available 3 weeks old

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
WACRM is a self-hostable CRM template for WhatsApp. In 0.7.0 and earlier, the automation send_webhook action in src/lib/automations/engine.ts and its validation in src/lib/automations/validate.ts allowed an authenticated user with automation privileges to submit an arbitrary webhook URL that the server fetched without the existing isDeliverableUrl SSRF guard in src/lib/webhooks/ssrf.ts, allowing requests to private, loopback, link-local, or cloud metadata addresses such as the cloud metadata endpoint at 169.254.169.254. This vulnerability is fixed with commit 23838a9959550e975d732ae08a44a3a2f0cc084b.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis
How this class of weakness works · CWE-918

The server can be induced to make requests to a URL an attacker controls, turning it into a proxy into internal networks and cloud metadata services. It's especially dangerous behind a trusted network boundary. The fix is strict allow-listing of destinations and blocking access to internal address ranges.

General guidance for the server-side request forgery (ssrf) class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Patch available Apply the vendor patch
Vendor patch github.com →
Recommended fix Moderate confidence
  1. 1. Navigate to the WACRM repository
  2. 2. Locate the vulnerable files: src/lib/automations/engine.ts, src/lib/automations/validate.ts
  3. 3. Apply the fix from commit 23838a9959550e975d732ae08a44a3a2f0cc084b which enforces the isDeliverableUrl SSRF guard from src/lib/webhooks/ssrf.ts on the send_webhook action
  4. 4. Verify that webhook URLs are validated against the isDeliverableUrl function before being fetched
  5. 5. Test that requests to private addresses (127.0.0.1, 10.x.x.x, 172.16-31.x.x, 192.168.x.x), link-local (169.254.x.x), and cloud metadata endpoints (169.254.169.254) are blocked
  6. 6. Deploy the patched code to production

Generated from the published advisory — verify against the referenced sources before acting.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

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Peer-ranked notes from engineers who’ve handled CVE-2026-67530 in production — separate from our analysis above.

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