Vulnerability Database

383,426

Total vulnerabilities in the database

Nuxt OG Image vulnerable to Server-Side Request Forgery via user-controlled parameters — nuxt-og-image

Server-Side Request Forgery (SSRF)

Product: Nuxt OG Image Version: < 6.2.5 CWE-ID: CWE-918: Server-Side Request Forgery

Description

The image generation endpoint (/_og/d/) accepts user-controlled parameters that are passed to the server-side renderer without proper validation or filtering. An attacker can trigger server-side requests to internal network addresses through multiple vectors.

Impact

  • Scanning internal ports and services inaccessible from the outside
  • Reading sensitive data from cloud infrastructure metadata services (tokens, credentials) when verbose error output is enabled

Attack Vectors

Three distinct vectors were identified, all exploiting the same underlying lack of URL validation:

Vector 1: CSS background-image injection via style parameter

GET /_og/d/og.png?style=background-image:+url(&#039;http://127.0.0.1:8888/secret&#039;)

Vector 2: &lt;img src&gt; injection via html parameter

GET /_og/d/og.png?html=&lt;img src=&quot;http://127.0.0.1:8888/secret&quot;&gt;

When verbose errors are enabled, the response content is leaked in base64-encoded error messages.

Vector 3: SVG &lt;image href&gt; injection via html parameter

GET /_og/d/og.png?html=&lt;svg&gt;&lt;image href=&quot;http://127.0.0.1:8888/secret&quot;&gt;&lt;/svg&gt;

Mitigation

Fixed in v6.2.5. The image source plugin now blocks requests to private IP ranges (IPv4/IPv6), loopback addresses, link-local addresses, and cloud metadata endpoints. Decimal/hexadecimal IP encoding bypasses are also handled.

Credits

Researcher: Dmitry Prokhorov (Positive Technologies)

  • Published: Mar 31, 2026
  • Updated: Apr 1, 2026
  • GHSA: GHSA-pqhr-mp3f-hrpp
  • Severity: Medium
  • Exploit:
  • CISA KEV:

CVSS v3:

  • Severity: Medium
  • Score: 5.3
  • AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CWEs:

Frequently Asked Questions

A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.

CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.

A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.

Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.

Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.

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