CVE-2023-27494 (GCVE-0-2023-27494)

Vulnerability from cvelistv5 – Published: 2023-03-16 20:29 – Updated: 2025-02-25 14:54

Title

Streamlit Cross-site Scripting vulnerability

Summary

Streamlit, software for turning data scripts into web applications, had a cross-site scripting (XSS) vulnerability in versions 0.63.0 through 0.80.0. Users of hosted Streamlit app(s) were vulnerable to a reflected XSS vulnerability. An attacker could craft a malicious URL with Javascript payloads to a Streamlit app. The attacker could then trick the user into visiting the malicious URL and, if successful, the server would render the malicious javascript payload as-is, leading to XSS. Version 0.81.0 contains a patch for this vulnerability.

Severity

5.9 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-02-25 14:29 UTC

CWE

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

Assigner

GitHub_M mitre root Scorecard

References

2 references

URL	Tags
https://github.com/streamlit/streamlit/security/a…	x_refsource_CONFIRM
https://github.com/streamlit/streamlit/commit/afc…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version	CPE status
streamlit	streamlit	Affected: >= 0.63.0, < 0.81.0	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2023-27494

Vulnerability from fkie_nvd - Published: 2023-03-16 21:15 - Updated: 2026-06-17 05:45

Severity

5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Summary

References

URL	Tags
security-advisories@github.com	https://github.com/streamlit/streamlit/commit/afcf880c60e5d7538936cc2d9721b9e1bc02b075	Patch
security-advisories@github.com	https://github.com/streamlit/streamlit/security/advisories/GHSA-9c6g-qpgj-rvxw	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/streamlit/streamlit/commit/afcf880c60e5d7538936cc2d9721b9e1bc02b075	Patch
af854a3a-2127-422b-91ae-364da2661108	https://github.com/streamlit/streamlit/security/advisories/GHSA-9c6g-qpgj-rvxw	Vendor Advisory

Impacted products

	Vendor	Product	Version
	snowflake	streamlit	*

JSON

To clipboard

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    }
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  "lastModified": "2026-06-17T05:45:19.890",
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          "version": "2.0.3"
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  "published": "2023-03-16T21:15:13.270",
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}

GHSA-9C6G-QPGJ-RVXW

Vulnerability from github – Published: 2023-03-17 14:43 – Updated: 2024-10-28 14:30

Summary

Streamlit publishes previously-patched Cross-site Scripting vulnerability

Details

Synopsis: Streamlit open source publicizes a prior security fix implemented in 2021. The vulnerability affected Streamlit versions between 0.63.0 and 0.80.0 (inclusive) and was patched on April 21, 2021. If you are using Streamlit with version before 0.63.0 or after 0.80.0, no action is required.

1. Impacted Products

Streamilt Open Source versions between 0.63.0 and 0.80.0.

2. Introduction

On April 21, 2021, Streamlit merged a patch that fixed a cross-site scripting (XSS) vulnerability in the Streamlit open source library, without an associated public advisory. The vulnerability affected Streamlit versions between 0.63.0 and 0.80.0 (inclusive), which are no longer supported. We recommend using the latest version of our library, but so long as you are not using an affected Streamlit version, no action is required.

3. Cross Site Scripting Vulnerability

3.1 Description

On April 20, 2021, Streamlit was informed via our support forum about a XSS vulnerability in the open source library. We fixed and merged a patch remediating the vulnerability on April 21st, 2021. The issue was determined to be in the moderate severity range with a maximum CVSSv3 base score of 5.9

3.2 Scenarios and attack vector(s)

Users of hosted Streamlit app(s) were vulnerable to a reflected XSS vulnerability. An attacker could craft a malicious URL with Javascript payloads to a Streamlit app. The attacker could then trick the user into visiting the malicious URL and, if successful, the server would render the malicious javascript payload as-is, leading to an XSS.

3.3 Our response

Streamlit fixed and merged a patch for this vulnerability on April 21, 2021. The vulnerability was fixed within 24hrs of notification to Streamlit.

3.4 Resolution

The vulnerability has been fixed in all Streamlit versions released since April 21, 2021. The affected versions – those between 0.63.0 and 0.80.0 (inclusive) – are no longer supported. We recommend always using supported versions of the Streamlit open source library. Version 1.19.0 is current as of this advisory.

4. Contact

Please contact security@snowflake.com if you have any questions regarding this advisory. If you discover a security vulnerability in one of our products or websites, please report the issue to HackerOne. For more information, please see our Vulnerability Disclosure Policy.

Severity

5.9 (Medium)


                  
                    CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N

6.0 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "streamlit"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.63.0"
            },
            {
              "fixed": "0.81.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-27494"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-03-17T14:43:03Z",
    "nvd_published_at": "2023-03-16T21:15:00Z",
    "severity": "MODERATE"
  },
  "details": "**Synopsis:**  Streamlit open source publicizes a prior security fix implemented in 2021. The vulnerability affected Streamlit versions between 0.63.0 and 0.80.0 (inclusive) and was patched on April 21, 2021.  If you are using Streamlit with version before 0.63.0 or after 0.80.0, no action is required. \n# 1. Impacted Products\nStreamilt Open Source versions between 0.63.0 and 0.80.0.\n# 2. Introduction\nOn April 21, 2021, Streamlit merged a patch that fixed a cross-site scripting (XSS) vulnerability in the Streamlit open source library, without an associated public advisory.  The vulnerability affected Streamlit versions between 0.63.0 and 0.80.0 (inclusive), which are no longer supported. We recommend using the latest version of our library, but so long as you are not using an affected Streamlit version, no action is required. \n# 3. Cross Site Scripting Vulnerability \n## 3.1 Description\nOn April 20, 2021, Streamlit was informed via our support forum about a XSS vulnerability in the open source library. We fixed and merged a patch remediating the vulnerability on April 21st, 2021. The issue was determined to be in the moderate severity range with a maximum CVSSv3 base score of [5.9](https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N)\n## 3.2 Scenarios and attack vector(s)\nUsers of hosted Streamlit app(s) were vulnerable to a reflected XSS vulnerability. An attacker could craft a malicious URL with Javascript payloads to a Streamlit app. The attacker could then trick the user into visiting the malicious URL and, if successful, the server would render the malicious javascript payload as-is, leading to an XSS. \n## 3.3 Our response\nStreamlit fixed and merged a patch for this vulnerability on April 21, 2021. The vulnerability was fixed within 24hrs of notification to Streamlit. \n## 3.4 Resolution\nThe vulnerability has been fixed in all Streamlit versions released since April 21, 2021.  The affected versions \u2013 those between 0.63.0 and 0.80.0 (inclusive) \u2013 are no longer supported. We recommend always using supported versions of the Streamlit open source library. Version 1.19.0 is current as of this advisory. \n# 4. Contact\nPlease contact security@snowflake.com if you have any questions regarding this advisory. If you discover a security vulnerability in one of our products or websites, please report the issue to HackerOne.  For more information, please see our [Vulnerability Disclosure Policy](https://hackerone.com/snowflake?type=team).",
  "id": "GHSA-9c6g-qpgj-rvxw",
  "modified": "2024-10-28T14:30:47Z",
  "published": "2023-03-17T14:43:03Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/streamlit/streamlit/security/advisories/GHSA-9c6g-qpgj-rvxw"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-27494"
    },
    {
      "type": "WEB",
      "url": "https://github.com/streamlit/streamlit/commit/afcf880c60e5d7538936cc2d9721b9e1bc02b075"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/streamlit/PYSEC-2023-50.yaml"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/streamlit/streamlit"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Streamlit publishes previously-patched Cross-site Scripting vulnerability"
}

GSD-2023-27494

Vulnerability from gsd - Updated: 2023-12-13 01:20

Details

Aliases

CVE-2023-27494

Aliases

CVE-2023-27494

JSON

To clipboard

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}

PYSEC-2023-50

Vulnerability from pysec - Published: 2023-03-16 21:15 - Updated: 2023-05-04 03:49

Details

Impacted products

Name	purl
streamlit	pkg:pypi/streamlit

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "streamlit",
        "purl": "pkg:pypi/streamlit"
      },
      "ranges": [
        {
          "events": [
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              "introduced": "0"
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          "repo": "https://github.com/streamlit/streamlit",
          "type": "GIT"
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      "versions": [
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        "0.64.0",
        "0.65.0",
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        "0.65.2",
        "0.66.0",
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        "0.67.1",
        "0.68.0",
        "0.68.1",
        "0.69.0",
        "0.69.1",
        "0.69.2",
        "0.70.0",
        "0.71.0",
        "0.72.0",
        "0.73.0",
        "0.73.1",
        "0.74.0",
        "0.74.1",
        "0.75.0",
        "0.76.0",
        "0.77.0",
        "0.78.0",
        "0.79.0",
        "0.80.0"
      ]
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    "CVE-2023-27494",
    "GHSA-9c6g-qpgj-rvxw"
  ],
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  "id": "PYSEC-2023-50",
  "modified": "2023-05-04T03:49:48.326940Z",
  "published": "2023-03-16T21:15:00Z",
  "references": [
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      "url": "https://github.com/streamlit/streamlit/security/advisories/GHSA-9c6g-qpgj-rvxw"
    },
    {
      "type": "FIX",
      "url": "https://github.com/streamlit/streamlit/commit/afcf880c60e5d7538936cc2d9721b9e1bc02b075"
    }
  ]
}

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.

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.

Action not permitted

CVE-2023-27494 (GCVE-0-2023-27494)

FKIE_CVE-2023-27494

GHSA-9C6G-QPGJ-RVXW

1. Impacted Products

2. Introduction

3. Cross Site Scripting Vulnerability

3.1 Description

3.2 Scenarios and attack vector(s)

3.3 Our response

3.4 Resolution

4. Contact

GSD-2023-27494

PYSEC-2023-50

Tags

Sightings

Nomenclature

Related by attack behaviour