Vulnerability-Lookup

GHSA-F7PH-P5RV-PHW2

Vulnerability from github – Published: 2018-11-06 23:13 – Updated: 2020-08-31 18:12

Summary

Cross-Site Scripting in nunjucks

Details

Affected versions of nunjucks do not properly escape specially structured user input in template vars when in auto-escape mode, resulting in a cross-site scripting vulnerability.

Proof of Concept

By using an array for the keys in a template var, escaping is bypassed.

name[]=<script>alert(1)</script>

A full PoC is available in the references section.

Recommendation

Update to version 2.4.3 or later.

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "nunjucks"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2016-10547"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-06-16T21:34:04Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "Affected versions of `nunjucks` do not properly escape specially structured user input in template vars when in auto-escape mode, resulting in a cross-site scripting vulnerability.\n\n## Proof of Concept\n\nBy using an array for the keys in a template var, escaping is bypassed.\n```javascript\nname[]=\u003cscript\u003ealert(1)\u003c/script\u003e\n```\n\nA full PoC is available in the references section.\n\n\n## Recommendation\n\nUpdate to version 2.4.3 or later.",
  "id": "GHSA-f7ph-p5rv-phw2",
  "modified": "2020-08-31T18:12:27Z",
  "published": "2018-11-06T23:13:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-10547"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mozilla/nunjucks/issues/835"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-f7ph-p5rv-phw2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/matt-/nunjucks_test"
    },
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/advisories/147"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [],
  "summary": "Cross-Site Scripting in nunjucks"
}

CVE-2016-10547 (GCVE-0-2016-10547)

Vulnerability from cvelistv5 – Published: 2018-05-31 20:00 – Updated: 2024-09-16 16:43

Summary

Nunjucks is a full featured templating engine for JavaScript. Versions 2.4.2 and lower have a cross site scripting (XSS) vulnerability in autoescape mode. In autoescape mode, all template vars should automatically be escaped. By using an array for the keys, such as `name[]=<script>alert(1)</script>`, it is possible to bypass autoescaping and inject content into the DOM.

Severity

No CVSS data available.

CWE

CWE-79 - Cross-site Scripting (XSS) - Generic (CWE-79)

Assigner

hackerone mitre root

References

3 references

URL	Tags
https://github.com/mozilla/nunjucks/issues/835	x_refsource_MISC
https://nodesecurity.io/advisories/147	x_refsource_MISC
https://github.com/matt-/nunjucks_test	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
HackerOne	nunjucks node module	Affected: <=2.4.2

Date Public

2018-04-26 00:00

Show details on NVD website

JSON

To clipboard

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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.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.