Vulnerability-Lookup

PYSEC-2026-570

Vulnerability from pysec - Published: 2026-06-29 11:50 - Updated: 2026-06-29 12:05

Details

The sample web application in web2py before 2.14.2 might allow remote attackers to execute arbitrary code via vectors involving use of a hardcoded encryption key when calling the session.connect function.

Severity

9.8 (Critical)


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

Impacted products

Name	purl
web2py

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "web2py"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.14.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.96.4",
        "1.98.2",
        "2.1.1"
      ]
    }
  ],
  "aliases": [
    "CVE-2016-3953",
    "GHSA-q2rq-qgcf-m22w"
  ],
  "details": "The sample web application in web2py before 2.14.2 might allow remote attackers to execute arbitrary code via vectors involving use of a hardcoded encryption key when calling the `session.connect` function.",
  "id": "PYSEC-2026-570",
  "modified": "2026-06-29T12:05:52.109084Z",
  "published": "2026-06-29T11:50:32.809887Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-3953"
    },
    {
      "type": "WEB",
      "url": "https://github.com/web2py/web2py/issues/1205"
    },
    {
      "type": "WEB",
      "url": "https://github.com/web2py/web2py/commit/9706d125b42481178d2b423de245f5d2faadbf40"
    },
    {
      "type": "WEB",
      "url": "https://devco.re/blog/2017/01/03/web2py-unserialize-code-execution-CVE-2016-3957"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/web2py/web2py"
    },
    {
      "type": "WEB",
      "url": "https://github.com/web2py/web2py/blob/R-2.14.1/applications/examples/models/session.py"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4030-1"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/web2py"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-q2rq-qgcf-m22w"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "web2py remote code execution via hardcoded encryption key in session.connect function"
}

CVE-2016-3953 (GCVE-0-2016-3953)

Vulnerability from cvelistv5 – Published: 2018-02-06 18:00 – Updated: 2024-08-06 00:10

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre

References

3 references

URL	Tags
https://devco.re/blog/2017/01/03/web2py-unseriali…	x_refsource_MISC
https://github.com/web2py/web2py/blob/R-2.14.1/ap…	x_refsource_MISC
https://usn.ubuntu.com/4030-1/	vendor-advisoryx_refsource_UBUNTU

Date Public

2016-03-25 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T00:10:31.906Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://devco.re/blog/2017/01/03/web2py-unserialize-code-execution-CVE-2016-3957/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/web2py/web2py/blob/R-2.14.1/applications/examples/models/session.py"
          },
          {
            "name": "USN-4030-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/4030-1/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2016-03-25T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "The sample web application in web2py before 2.14.2 might allow remote attackers to execute arbitrary code via vectors involving use of a hardcoded encryption key when calling the session.connect function."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2019-06-21T21:06:03.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://devco.re/blog/2017/01/03/web2py-unserialize-code-execution-CVE-2016-3957/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/web2py/web2py/blob/R-2.14.1/applications/examples/models/session.py"
        },
        {
          "name": "USN-4030-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/4030-1/"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2016-3953",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "The sample web application in web2py before 2.14.2 might allow remote attackers to execute arbitrary code via vectors involving use of a hardcoded encryption key when calling the session.connect function."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://devco.re/blog/2017/01/03/web2py-unserialize-code-execution-CVE-2016-3957/",
              "refsource": "MISC",
              "url": "https://devco.re/blog/2017/01/03/web2py-unserialize-code-execution-CVE-2016-3957/"
            },
            {
              "name": "https://github.com/web2py/web2py/blob/R-2.14.1/applications/examples/models/session.py",
              "refsource": "MISC",
              "url": "https://github.com/web2py/web2py/blob/R-2.14.1/applications/examples/models/session.py"
            },
            {
              "name": "USN-4030-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/4030-1/"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2016-3953",
    "datePublished": "2018-02-06T18:00:00.000Z",
    "dateReserved": "2016-04-05T00:00:00.000Z",
    "dateUpdated": "2024-08-06T00:10:31.906Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

GHSA-Q2RQ-QGCF-M22W

Vulnerability from github – Published: 2022-05-14 00:57 – Updated: 2023-08-03 22:44

Summary

web2py remote code execution via hardcoded encryption key in session.connect function

Details

Severity

9.8 (Critical)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "web2py"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.14.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2016-3953"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-798"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-08-03T22:44:35Z",
    "nvd_published_at": "2018-02-06T18:29:00Z",
    "severity": "CRITICAL"
  },
  "details": "The sample web application in web2py before 2.14.2 might allow remote attackers to execute arbitrary code via vectors involving use of a hardcoded encryption key when calling the `session.connect` function.",
  "id": "GHSA-q2rq-qgcf-m22w",
  "modified": "2023-08-03T22:44:35Z",
  "published": "2022-05-14T00:57:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-3953"
    },
    {
      "type": "WEB",
      "url": "https://github.com/web2py/web2py/issues/1205"
    },
    {
      "type": "WEB",
      "url": "https://github.com/web2py/web2py/commit/9706d125b42481178d2b423de245f5d2faadbf40"
    },
    {
      "type": "WEB",
      "url": "https://devco.re/blog/2017/01/03/web2py-unserialize-code-execution-CVE-2016-3957"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/web2py/web2py"
    },
    {
      "type": "WEB",
      "url": "https://github.com/web2py/web2py/blob/R-2.14.1/applications/examples/models/session.py"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4030-1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "web2py remote code execution via hardcoded encryption key in session.connect function"
}

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.

Detection rules are retrieved from Rulezet.

Action not permitted

PYSEC-2026-570

CVE-2016-3953 (GCVE-0-2016-3953)

GHSA-Q2RQ-QGCF-M22W

Tags

Sightings

Nomenclature