Vulnerability-Lookup

CNVD-2020-52696

Vulnerability from cnvd - Published: 2020-09-18

Title

Sanitize跨站脚本漏洞

Description

Sanitize是美国Ryan Grove软件开发者的一款HTML和CSS清理器，它支持从字符串中删除HTML和CSS等。 Sanitize 3.0.0及之后版本（5.2.1版本已修复）中存在跨站脚本漏洞。使用Sanitize的“relaxed”配置或允许某些元素的自定义配置清理HTML时，即使math和svg不在allowlist中，math或svg元素中的某些内容也可能无法正确清理。如果使用Sanitize的松弛配置或允许以下一个或多个HTML元素的自定义配置，则很可能容易出现此问题：iframe、math、noembed、noframes、noscript、纯文本、脚本、样式、svg、xmp。攻击者可借助特制输入利用该漏洞注入任意的HTML或造成其他危害。

Severity

中

Patch Name

Sanitize跨站脚本漏洞的补丁

Patch Description

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://github.com/rgrove/sanitize/releases/tag/v5.2.1

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-4054

Impacted products

Name
Sanitize Sanitize >=3.0.0，<5.2.1

Show details on source website

JSON

To clipboard

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    "cve": {
      "cveNumber": "CVE-2020-4054"
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  "number": "CNVD-2020-52696",
  "openTime": "2020-09-18",
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  "submitTime": "2020-06-17",
  "title": "Sanitize\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e"
}

CVE-2020-4054 (GCVE-0-2020-4054)

Vulnerability from cvelistv5 – Published: 2020-06-16 22:10 – Updated: 2024-08-04 07:52

Title

Cross-site Scripting in Sanitize

Summary

In Sanitize (RubyGem sanitize) greater than or equal to 3.0.0 and less than 5.2.1, there is a cross-site scripting vulnerability. When HTML is sanitized using Sanitize's "relaxed" config, or a custom config that allows certain elements, some content in a math or svg element may not be sanitized correctly even if math and svg are not in the allowlist. You are likely to be vulnerable to this issue if you use Sanitize's relaxed config or a custom config that allows one or more of the following HTML elements: iframe, math, noembed, noframes, noscript, plaintext, script, style, svg, xmp. Using carefully crafted input, an attacker may be able to sneak arbitrary HTML through Sanitize, potentially resulting in XSS (cross-site scripting) or other undesired behavior when that HTML is rendered in a browser. This has been fixed in 5.2.1.

Severity

7.3 (High)


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

CWE

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

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 8094 records in the last 180 days details

References

5 references

URL	Tags
https://github.com/rgrove/sanitize/security/advis…	x_refsource_CONFIRM
https://github.com/rgrove/sanitize/commit/a11498d…	x_refsource_MISC
https://github.com/rgrove/sanitize/releases/tag/v5.2.1	x_refsource_MISC
https://www.debian.org/security/2020/dsa-4730	vendor-advisoryx_refsource_DEBIAN
https://usn.ubuntu.com/4543-1/	vendor-advisoryx_refsource_UBUNTU

Impacted products

1 product

Vendor	Product	Version
rgrove	Sanitize	Affected: >= 3.0.0, < 5.2.1

Show details on NVD website

JSON

To clipboard

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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T07:52:20.925Z",
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        "references": [
          {
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              "x_transferred"
            ],
            "url": "https://github.com/rgrove/sanitize/security/advisories/GHSA-p4x4-rw2p-8j8m"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/rgrove/sanitize/commit/a11498de9e283cd457b35ee252983662f7452aa9"
          },
          {
            "tags": [
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            ],
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          },
          {
            "name": "DSA-4730",
            "tags": [
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            ],
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              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/4543-1/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Sanitize",
          "vendor": "rgrove",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 3.0.0, \u003c 5.2.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In Sanitize (RubyGem sanitize) greater than or equal to 3.0.0 and less than 5.2.1, there is a cross-site scripting vulnerability. When HTML is sanitized using Sanitize\u0027s \"relaxed\" config, or a custom config that allows certain elements, some content in a math or svg element may not be sanitized correctly even if math and svg are not in the allowlist. You are likely to be vulnerable to this issue if you use Sanitize\u0027s relaxed config or a custom config that allows one or more of the following HTML elements: iframe, math, noembed, noframes, noscript, plaintext, script, style, svg, xmp. Using carefully crafted input, an attacker may be able to sneak arbitrary HTML through Sanitize, potentially resulting in XSS (cross-site scripting) or other undesired behavior when that HTML is rendered in a browser. This has been fixed in 5.2.1."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
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          ],
          "url": "https://github.com/rgrove/sanitize/releases/tag/v5.2.1"
        },
        {
          "name": "DSA-4730",
          "tags": [
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            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2020/dsa-4730"
        },
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        },
        "affects": {
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                    {
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    "dateReserved": "2019-12-30T00:00:00.000Z",
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    "state": "PUBLISHED"
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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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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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.

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.

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