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High

Security advisory

Type: advisorySources: OSVCVE: CVE-2020-15258

In Wire before 3.20.x, `shell.openExternal` was used without checking the URL. This vulnerability allows an attacker to execute code on the victims machine by sending messages containing links with arbitrary protocols. The victim has to interact with the link and sees the URL that is opened. The issue was patched by implementing a helper function which checks if the URL's protocol is common. If it is common, the URL will be opened externally. If not, the URL will not be opened and a warning appears for the user informing them that a probably insecure URL was blocked from being executed. The issue is patched in Wire 3.20.x. More technical details about exploitation are available in the linked advisory.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2020-15258
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 08:48 UTC · Revision 1

Source evidence

CVE-2020-15258

core-osv · Original source

Published 16 Oct 2020, 17:15 UTC

In Wire before 3.20.x, `shell.openExternal` was used without checking the URL. This vulnerability allows an attacker to execute code on the victims machine by sending messages containing links with arbitrary protocols. The victim has to interact with the link and sees the URL that is opened. The issue was patched by implementing a helper function which checks if the URL's protocol is common. If it is common, the URL will be opened externally. If not, the URL will not be opened and a warning appears for the user informing them that a probably insecure URL was blocked from being executed. The issue is patched in Wire 3.20.x. More technical details about exploitation are available in the linked advisory.

osv:CVE-2020-15258
Complete source record
{
  "id": "6f029615052a9221372cfb65c209679c9573b264c43896b10f1e70a62c4de945",
  "url": "https://osv.dev/vulnerability/CVE-2020-15258",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-15258",
    "summary": "In Wire before 3.20.x, `shell.openExternal` was used without checking the URL. This vulnerability allows an attacker to execute code on the victims machine by sending messages containing links with arbitrary protocols. The victim has to interact with the link and sees the URL that is opened. The issue was patched by implementing a helper function which checks if the URL's protocol is common. If it is common, the URL will be opened externally. If not, the URL will not be opened and a warning appears for the user informing them that a probably insecure URL was blocked from being executed. The issue is patched in Wire 3.20.x. More technical details about exploitation are available in the linked advisory.",
    "evidence": "osv:CVE-2020-15258",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-15258",
      "aliases": [
        "CVE-2020-15258",
        "GHSA-5gpx-9976-ggpm"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
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              "repo": "https://github.com/wireapp/wire-desktop",
              "type": "GIT",
              "events": [
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                {
                  "fixed": "a7ac8d1a93fee1383e3d46caa87dfff68e12b08c"
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                {
                  "fixed": "b3705fffa75a03f055530f55a754face5ac0623b"
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              ],
              "database_specific": {
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                    "cpe": "cpe:2.3:a:wire:wire:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
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                      {
                        "fixed": "3.20.2934"
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                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
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                        "fixed": "b3705fffa75a03f055530f55a754face5ac0623b"
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                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
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          "versions": [
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            "1.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-15258.json"
          }
        }
      ],
      "modified": "2026-10-24T10:50:23.243909915Z",
      "provider": "osv",
      "references": [
        "https://github.com/wireapp/wire-desktop/commit/b3705fffa75a03f055530f55a754face5ac0623b",
        "https://benjamin-altpeter.de/shell-openexternal-dangers/",
        "https://github.com/wireapp/wire-desktop/security/advisories/GHSA-5gpx-9976-ggpm"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:wire:wire:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "wire:wire",
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "3.20.2934"
                  },
                  {
                    "fixed": "3.20.2934"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-15258",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 442090,
  "published_at": "2020-10-16T17:15:12.247+00:00"
}