CVE intelligence and bounded remediation

CVE-2022-40296 — Phppointofsale Php Point Of Sale security vulnerability

Critical CVSS 9.8

The application was vulnerable to a Server-Side Request Forgery attacks, allowing the backend server to interact with unexpected endpoints, potentially including internal and local services, leading to attacks in other downstream systems.

Severity
Critical
CVSS
9.8 (3.1)
Published
2022-10-31
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-918

Affected products

  • phppointofsale / php_point_of_sale / 19.0

Matched remediation archetype

Server-side request forgery and unintended proxying

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Check exposure

  • Inventory server-side URL fetchers, webhooks, importers, previews, redirects, proxies, and protocol handlers reachable from untrusted input.
  • Map egress paths to internal services, metadata endpoints, loopback, private address space, and privileged control planes.
  • Review DNS resolution, redirect, proxy, credential-forwarding, and URL parsing behavior without requesting sensitive targets.

Remediate safely

  • Replace arbitrary destinations with named integrations or a strict allowlist of schemes, hosts, ports, and paths.
  • Resolve and validate every destination and redirect hop, then enforce egress policy independently of application checks.
  • Remove ambient credentials and sensitive headers from fetchers; apply response size, time, and content limits.

Authoritative sources

Complete CVE record and remediation plan

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