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Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2020-11944

Abe (aka bitcoin-abe) through 0.7.2, and 0.8pre, allows XSS in __call__ in abe.py because the PATH_INFO environment variable is mishandled during a PageNotFound exception.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2020-11944
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 10:42 UTC · Revision 1

Source evidence

CVE-2020-11944

core-osv · Original source

Published 20 Apr 2020, 22:15 UTC

Abe (aka bitcoin-abe) through 0.7.2, and 0.8pre, allows XSS in __call__ in abe.py because the PATH_INFO environment variable is mishandled during a PageNotFound exception.

osv:CVE-2020-11944
Complete source record
{
  "id": "4968e3563a42cbd2b6ea314f1080315c5973eed9dccc93528202866414fd7dbb",
  "url": "https://osv.dev/vulnerability/CVE-2020-11944",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-11944",
    "summary": "Abe (aka bitcoin-abe) through 0.7.2, and 0.8pre, allows XSS in __call__ in abe.py because the PATH_INFO environment variable is mishandled during a PageNotFound exception.",
    "evidence": "osv:CVE-2020-11944",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-11944",
      "aliases": [
        "CVE-2020-11944"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/bitcoin-abe/bitcoin-abe",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "6e09eaf11b793184e1c310b9b2574314a26e331f"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:bitcoin-abe_project:bitcoin-abe:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0.7.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.7.2",
            "v0.7.1",
            "v0.7",
            "v0.6",
            "v0.5",
            "v0.4"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-11944.json"
          }
        }
      ],
      "modified": "2026-10-20T10:51:23.872105969Z",
      "provider": "osv",
      "references": [
        "https://geeknik-labs.com",
        "https://github.com/bitcoin-abe/bitcoin-abe/issues/292",
        "https://github.com/bitcoin-abe/bitcoin-abe/blob/d33f6e85de74e708e11cabe4ed0246e12025c726/Abe/abe.py#L253-L254"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:bitcoin-abe_project:bitcoin-abe:0.8:pre:*:*:*:*:*:*"
            ],
            "vendor_product": "bitcoin-abe_project:bitcoin-abe",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "0.8-pre"
                  },
                  {
                    "last_affected": "0.8-pre"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-11944",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 382543,
  "published_at": "2020-04-20T22:15:13.65+00:00"
}