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node-prismjs — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2020-15138

Prism is vulnerable to Cross-Site Scripting. The easing preview of the Previewers plugin has an XSS vulnerability that allows attackers to execute arbitrary code in Safari and Internet Explorer. This impacts all Safari and Internet Explorer users of Prism >=v1.1.0 that use the _Previewers_ plugin (>=v1.10.0) or the _Previewer: Easing_ plugin (v1.1.0 to v1.9.0). This problem is fixed in version 1.21.0. To workaround the issue without upgrading, disable the easing preview on all impacted code blocks. You need Prism v1.10.0 or newer to apply this workaround.

Products
node-prismjs
Affected versions
Not specified
Fixed versions
1.11.0+dfsg-4
CVEs
CVE-2020-15138
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 13:25 UTC · Revision 1

Source evidence

DEBIAN-CVE-2020-15138

core-osv · Original source

Published 7 Aug 2020, 17:15 UTC

Prism is vulnerable to Cross-Site Scripting. The easing preview of the Previewers plugin has an XSS vulnerability that allows attackers to execute arbitrary code in Safari and Internet Explorer. This impacts all Safari and Internet Explorer users of Prism >=v1.1.0 that use the _Previewers_ plugin (>=v1.10.0) or the _Previewer: Easing_ plugin (v1.1.0 to v1.9.0). This problem is fixed in version 1.21.0. To workaround the issue without upgrading, disable the easing preview on all impacted code blocks. You need Prism v1.10.0 or newer to apply this workaround.

osv:DEBIAN-CVE-2020-15138

node-prismjs

Fixed versions: 1.11.0+dfsg-4

node-prismjs

Fixed versions: 1.11.0+dfsg-4

node-prismjs

Fixed versions: 1.11.0+dfsg-4

Complete source record
{
  "id": "4f70992d2df1b0fb371c7278330e140b392da683c1c669576c40a3332a18ab53",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2020-15138",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2020-15138",
    "summary": "Prism is vulnerable to Cross-Site Scripting. The easing preview of the Previewers plugin has an XSS vulnerability that allows attackers to execute arbitrary code in Safari and Internet Explorer. This impacts all Safari and Internet Explorer users of Prism >=v1.1.0 that use the _Previewers_ plugin (>=v1.10.0) or the _Previewer: Easing_ plugin (v1.1.0 to v1.9.0). This problem is fixed in version 1.21.0. To workaround the issue without upgrading, disable the easing preview on all impacted code blocks. You need Prism v1.10.0 or newer to apply this workaround.",
    "evidence": "osv:DEBIAN-CVE-2020-15138",
    "products": [
      {
        "name": {
          "value": "node-prismjs",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.11.0+dfsg-4",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "node-prismjs",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.11.0+dfsg-4",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "node-prismjs",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.11.0+dfsg-4",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "DEBIAN-CVE-2020-15138",
      "aliases": [
        "DEBIAN-CVE-2020-15138"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.11.0+dfsg-4"
                }
              ]
            }
          ],
          "package": {
            "name": "node-prismjs",
            "purl": "pkg:deb/debian/node-prismjs?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-15138.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.11.0+dfsg-4"
                }
              ]
            }
          ],
          "package": {
            "name": "node-prismjs",
            "purl": "pkg:deb/debian/node-prismjs?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-15138.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.11.0+dfsg-4"
                }
              ]
            }
          ],
          "package": {
            "name": "node-prismjs",
            "purl": "pkg:deb/debian/node-prismjs?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2020-15138.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-26T12:02:26.583296767Z",
      "provider": "osv",
      "upstream": [
        "CVE-2020-15138"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2020-15138"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2020-15138",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 452201,
  "published_at": "2020-08-07T17:15:10.45+00:00"
}