Vulnerability-Lookup

GHSA-VJ2P-7PGW-G2WF

Vulnerability from github – Published: 2026-03-27 15:46 – Updated: 2026-03-27 15:46

Summary

Postiz App has a High-Severity SSRF Vulnerability via Next.js

Details

Impact

A successful SSRF attack allows an attacker to: - Bypass firewalls to scan and interact with internal network services/ports. - Access sensitive cloud metadata services (e.g., AWS IMDS 169.254.169.254) to potentially leak instance credentials. - Pivot into the internal network environment where Postiz is hosted.

Workarounds

There are no workarounds known to this, please upgrade to Postiz version v2.21.1.

Severity

7.5 (High)


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

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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "postiz"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "2.0.12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-1395",
      "CWE-918"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-27T15:46:53Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "### Impact\nA successful SSRF attack allows an attacker to:\n- Bypass firewalls to scan and interact with internal network services/ports.\n- Access sensitive cloud metadata services (e.g., AWS IMDS 169.254.169.254) to potentially leak instance credentials.\n- Pivot into the internal network environment where Postiz is hosted.\n\n### Workarounds\nThere are no workarounds known to this, please upgrade to Postiz version `v2.21.1`.",
  "id": "GHSA-vj2p-7pgw-g2wf",
  "modified": "2026-03-27T15:46:53Z",
  "published": "2026-03-27T15:46:53Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/gitroomhq/postiz-app/security/advisories/GHSA-vj2p-7pgw-g2wf"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vercel/next.js/security/advisories/GHSA-fr5h-rqp8-mj6g"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-34351"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/gitroomhq/postiz-app"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Postiz App has a High-Severity SSRF Vulnerability via Next.js"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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