Vulnerability-Lookup

PYSEC-2026-661

Vulnerability from pysec - Published: 2026-07-02 14:13 - Updated: 2026-07-06 07:36

Details

An issue was discovered in GNU Mailman before 2.1.28. A crafted URL can cause arbitrary text to be displayed on a web page from a trusted site.

Severity

6.5 (Medium)


                  
                    CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Impacted products

Name	purl
mailman	pkg:pypi/mailman

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "mailman",
        "purl": "pkg:pypi/mailman"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.1.28"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.0.0b3-"
      ]
    }
  ],
  "aliases": [
    "CVE-2018-13796",
    "GHSA-xqvg-xm9m-p2c4"
  ],
  "details": "An issue was discovered in GNU Mailman before 2.1.28. A crafted URL can cause arbitrary text to be displayed on a web page from a trusted site.",
  "id": "PYSEC-2026-661",
  "modified": "2026-07-06T07:36:49.961871Z",
  "published": "2026-07-02T14:13:09.148549Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-13796"
    },
    {
      "type": "WEB",
      "url": "https://bugs.launchpad.net/mailman/+bug/1780874"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-xqvg-xm9m-p2c4"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00034.html"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201904-10"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4348-1"
    },
    {
      "type": "WEB",
      "url": "https://www.mail-archive.com/mailman-users@python.org/msg71003.html"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/mailman"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Moderate severity vulnerability that affects mailman"
}

CVE-2018-13796 (GCVE-0-2018-13796)

Vulnerability from cvelistv5 – Published: 2018-07-12 18:00 – Updated: 2024-08-05 09:14

Summary

An issue was discovered in GNU Mailman before 2.1.28. A crafted URL can cause arbitrary text to be displayed on a web page from a trusted site.

Severity

No CVSS data available.

CWE

Assigner

mitre

References

5 references

URL	Tags
https://bugs.launchpad.net/mailman/+bug/1780874	x_refsource_CONFIRM
https://lists.debian.org/debian-lts-announce/2018…	mailing-listx_refsource_MLIST
https://www.mail-archive.com/mailman-users%40pyth…	mailing-listx_refsource_MLIST
https://security.gentoo.org/glsa/201904-10	vendor-advisoryx_refsource_GENTOO
https://usn.ubuntu.com/4348-1/	vendor-advisoryx_refsource_UBUNTU

Date Public

2018-07-10 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T09:14:47.081Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://bugs.launchpad.net/mailman/+bug/1780874"
          },
          {
            "name": "[debian-lts-announce] 20180724 [SECURITY] [DLA 1442-1] mailman security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00034.html"
          },
          {
            "name": "[mailman-users] 20180710 Re: correction: Mailman 2.1.28 Security fix release",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://www.mail-archive.com/mailman-users%40python.org/msg71003.html"
          },
          {
            "name": "GLSA-201904-10",
            "tags": [
              "vendor-advisory",
              "x_refsource_GENTOO",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/201904-10"
          },
          {
            "name": "USN-4348-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/4348-1/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2018-07-10T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "An issue was discovered in GNU Mailman before 2.1.28. A crafted URL can cause arbitrary text to be displayed on a web page from a trusted site."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-05-06T19:06:04.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://bugs.launchpad.net/mailman/+bug/1780874"
        },
        {
          "name": "[debian-lts-announce] 20180724 [SECURITY] [DLA 1442-1] mailman security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00034.html"
        },
        {
          "name": "[mailman-users] 20180710 Re: correction: Mailman 2.1.28 Security fix release",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://www.mail-archive.com/mailman-users%40python.org/msg71003.html"
        },
        {
          "name": "GLSA-201904-10",
          "tags": [
            "vendor-advisory",
            "x_refsource_GENTOO"
          ],
          "url": "https://security.gentoo.org/glsa/201904-10"
        },
        {
          "name": "USN-4348-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/4348-1/"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2018-13796",
          "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": "An issue was discovered in GNU Mailman before 2.1.28. A crafted URL can cause arbitrary text to be displayed on a web page from a trusted site."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://bugs.launchpad.net/mailman/+bug/1780874",
              "refsource": "CONFIRM",
              "url": "https://bugs.launchpad.net/mailman/+bug/1780874"
            },
            {
              "name": "[debian-lts-announce] 20180724 [SECURITY] [DLA 1442-1] mailman security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00034.html"
            },
            {
              "name": "[mailman-users] 20180710 Re: correction: Mailman 2.1.28 Security fix release",
              "refsource": "MLIST",
              "url": "https://www.mail-archive.com/mailman-users@python.org/msg71003.html"
            },
            {
              "name": "GLSA-201904-10",
              "refsource": "GENTOO",
              "url": "https://security.gentoo.org/glsa/201904-10"
            },
            {
              "name": "USN-4348-1",
              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/4348-1/"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2018-13796",
    "datePublished": "2018-07-12T18:00:00.000Z",
    "dateReserved": "2018-07-10T00:00:00.000Z",
    "dateUpdated": "2024-08-05T09:14:47.081Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

GHSA-XQVG-XM9M-P2C4

Vulnerability from github – Published: 2018-09-11 18:57 – Updated: 2021-09-22 16:31

Summary

Moderate severity vulnerability that affects mailman

Details

An issue was discovered in GNU Mailman before 2.1.28. A crafted URL can cause arbitrary text to be displayed on a web page from a trusted site.

Severity

6.5 (Medium)


                  
                    CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "mailman"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.1.28"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2018-13796"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-06-16T22:04:19Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "An issue was discovered in GNU Mailman before 2.1.28. A crafted URL can cause arbitrary text to be displayed on a web page from a trusted site.",
  "id": "GHSA-xqvg-xm9m-p2c4",
  "modified": "2021-09-22T16:31:46Z",
  "published": "2018-09-11T18:57:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-13796"
    },
    {
      "type": "WEB",
      "url": "https://bugs.launchpad.net/mailman/+bug/1780874"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-xqvg-xm9m-p2c4"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00034.html"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201904-10"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4348-1"
    },
    {
      "type": "WEB",
      "url": "https://www.mail-archive.com/mailman-users@python.org/msg71003.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Moderate severity vulnerability that affects mailman"
}

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-2026-661

CVE-2018-13796 (GCVE-0-2018-13796)

GHSA-XQVG-XM9M-P2C4

Tags

Sightings

Nomenclature