Vulnerability-Lookup

Vulnerability from bitnami_vulndb

Published

2024-03-06 10:54

Modified

2026-09-08 08:34

Summary

Improper handling of special tags within script contexts in html/template

Details

The html/template package does not apply the proper rules for handling occurrences of "<script", "<!--", and "</script" within JS literals in contexts. This may cause the template parser to improperly consider script contexts to be terminated early, causing actions to be improperly escaped. This could be leveraged to perform an XSS attack.

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "golang",
        "purl": "pkg:bitnami/golang"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.20.8"
            },
            {
              "introduced": "1.21.0"
            },
            {
              "fixed": "1.21.1"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-39319"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*"
    ],
    "severity": "Medium"
  },
  "details": "The html/template package does not apply the proper rules for handling occurrences of \"\u003cscript\", \"\u003c!--\", and \"\u003c/script\" within JS literals in \u003cscript\u003e contexts. This may cause the template parser to improperly consider script contexts to be terminated early, causing actions to be improperly escaped. This could be leveraged to perform an XSS attack.",
  "id": "BIT-golang-2023-39319",
  "modified": "2026-09-08T08:34:36.952Z",
  "published": "2024-03-06T10:54:32.276Z",
  "references": [
    {
      "type": "FIX",
      "url": "https://go.dev/cl/526157"
    },
    {
      "type": "REPORT",
      "url": "https://go.dev/issue/62197"
    },
    {
      "type": "ARTICLE",
      "url": "https://groups.google.com/g/golang-dev/c/2C5vbR-UNkI/m/L1hdrPhfBAAJ"
    },
    {
      "type": "ADVISORY",
      "url": "https://pkg.go.dev/vuln/GO-2023-2043"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202311-09"
    },
    {
      "type": "ADVISORY",
      "url": "https://security.netapp.com/advisory/ntap-20231020-0009/"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-39319"
    }
  ],
  "schema_version": "1.5.0",
  "summary": "Improper handling of special tags within script contexts in html/template"
}

CVE-2023-39319 (GCVE-0-2023-39319)

Vulnerability from cvelistv5 – Published: 2023-09-08 16:13 – Updated: 2025-02-13 17:02

Title

Improper handling of special tags within script contexts in html/template

Summary

The html/template package does not apply the proper rules for handling occurrences of "<script", "<!--", and "</script" within JS literals in <script> contexts. This may cause the template parser to improperly consider script contexts to be terminated early, causing actions to be improperly escaped. This could be leveraged to perform an XSS attack.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-26 16:02 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

Go CNA under the Google root

CNA scorecard E 42/100 over 74 records in the last 180 days details

References

6 references

URL	Tags
https://go.dev/issue/62197
https://go.dev/cl/526157
https://groups.google.com/g/golang-dev/c/2C5vbR-U…
https://pkg.go.dev/vuln/GO-2023-2043
https://security.netapp.com/advisory/ntap-2023102…
https://security.gentoo.org/glsa/202311-09

Impacted products

1 product

Vendor	Product	Version
Go standard library	html/template	Affected: 0 , < 1.20.8 (semver) Affected: 1.21.0-0 , < 1.21.1 (semver)

Credits

Takeshi Kaneko (GMO Cybersecurity by Ierae, Inc.)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T18:02:06.746Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://go.dev/issue/62197"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://go.dev/cl/526157"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://groups.google.com/g/golang-dev/c/2C5vbR-UNkI/m/L1hdrPhfBAAJ"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://pkg.go.dev/vuln/GO-2023-2043"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20231020-0009/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202311-09"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-39319",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-26T16:02:49.339620Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-26T16:04:58.123Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "html/template",
          "product": "html/template",
          "programRoutines": [
            {
              "name": "escaper.escapeText"
            },
            {
              "name": "tSpecialTagEnd"
            },
            {
              "name": "indexTagEnd"
            },
            {
              "name": "Template.Execute"
            },
            {
              "name": "Template.ExecuteTemplate"
            }
          ],
          "vendor": "Go standard library",
          "versions": [
            {
              "lessThan": "1.20.8",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "1.21.1",
              "status": "affected",
              "version": "1.21.0-0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Takeshi Kaneko (GMO Cybersecurity by Ierae, Inc.)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The html/template package does not apply the proper rules for handling occurrences of \"\u003cscript\", \"\u003c!--\", and \"\u003c/script\" within JS literals in \u003cscript\u003e contexts. This may cause the template parser to improperly consider script contexts to be terminated early, causing actions to be improperly escaped. This could be leveraged to perform an XSS attack."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-11-25T11:10:06.783Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
      "references": [
        {
          "url": "https://go.dev/issue/62197"
        },
        {
          "url": "https://go.dev/cl/526157"
        },
        {
          "url": "https://groups.google.com/g/golang-dev/c/2C5vbR-UNkI/m/L1hdrPhfBAAJ"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2023-2043"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20231020-0009/"
        },
        {
          "url": "https://security.gentoo.org/glsa/202311-09"
        }
      ],
      "title": "Improper handling of special tags within script contexts in html/template"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "cveId": "CVE-2023-39319",
    "datePublished": "2023-09-08T16:13:28.663Z",
    "dateReserved": "2023-07-27T17:05:55.186Z",
    "dateUpdated": "2025-02-13T17:02:47.366Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

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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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