FKIE_CVE-2021-25980

Vulnerability from fkie_nvd - Published: 2021-11-11 07:15 - Updated: 2026-06-17 03:42
Severity
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
In Talkyard, versions v0.04.01 through v0.6.74-WIP-63220cb, v0.2020.22-WIP-b2e97fe0e through v0.2021.02-WIP-879ef3fe1 and tyse-v0.2021.02-879ef3fe1-regular through tyse-v0.2021.28-af66b6905-regular, are vulnerable to Host Header Injection. By luring a victim application-user to click on a link, an unauthenticated attacker can use the “forgot password” functionality to reset the victim’s password and successfully take over their account.
References
vulnerabilitylab@mend.iohttps://github.com/debiki/talkyard/commit/4067e191a909ed06f250d09a40e43aa5edbb0289Patch, Third Party Advisory
vulnerabilitylab@mend.iohttps://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25980Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/debiki/talkyard/commit/4067e191a909ed06f250d09a40e43aa5edbb0289Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25980Third Party Advisory
Impacted products
Vendor Product Version
talkyard talkyard *
talkyard talkyard *
talkyard talkyard *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "talkyard",
          "vendor": "debiki",
          "versions": [
            {
              "lessThan": "v0*",
              "status": "affected",
              "version": "v0.04.01",
              "versionType": "custom"
            },
            {
              "lessThan": "v0.2020*",
              "status": "affected",
              "version": "v0.2020.22-WIP-b2e97fe0e",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "v0.2021.02-WIP-879ef3fe1",
              "status": "affected",
              "version": "v0.2021",
              "versionType": "custom"
            },
            {
              "lessThan": "tyse-v0.2021*",
              "status": "affected",
              "version": "tyse-v0.2021.02-879ef3fe1-regular",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "vulnerabilitylab@mend.io"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:talkyard:talkyard:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C3AD90CD-FF57-4CA1-85B3-3EADB9159EB3",
              "versionEndIncluding": "0.6.74-wip-63220cb",
              "versionStartIncluding": "0.04.01",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:talkyard:talkyard:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "74C594EE-CC21-4F19-9E76-AB4A2A5B8ACA",
              "versionEndIncluding": "0.2021.02-wip-879ef3fe1",
              "versionStartIncluding": "0.2020.22-wip-b2e97fe0e",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:talkyard:talkyard:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "AE16449B-47FA-4F64-868C-056B170CAB0D",
              "versionEndIncluding": "tyse-v0.2021.28-af66b6905-regular",
              "versionStartIncluding": "tyse-v0.2021.02-879ef3fe1-regular",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Talkyard, versions v0.04.01 through v0.6.74-WIP-63220cb, v0.2020.22-WIP-b2e97fe0e through v0.2021.02-WIP-879ef3fe1 and tyse-v0.2021.02-879ef3fe1-regular through tyse-v0.2021.28-af66b6905-regular, are vulnerable to Host Header Injection. By luring a victim application-user to click on a link, an unauthenticated attacker can use the \u201cforgot password\u201d functionality to reset the victim\u2019s password and successfully take over their account."
    },
    {
      "lang": "es",
      "value": "En Talkyard, las versiones v0.04.01 hasta v0.6.74-WIP-63220cb, versiones v0.2020.22-WIP-b2e97fe0e hasta v0.2021.02-WIP-879ef3fe1 y versiones tyse-v0.2021.02-879ef3fe1-regular hasta tyse-v0.2021.28-af66b6905-regular, son vulnerables a una inyecci\u00f3n de encabezados de host. Atrayendo a un usuario de la aplicaci\u00f3n v\u00edctima para que haga clic en un enlace, un atacante no autenticado puede usar la funcionalidad \"forgot password\" para restablecer la contrase\u00f1a de la v\u00edctima y hacerse con su cuenta"
    }
  ],
  "id": "CVE-2021-25980",
  "lastModified": "2026-06-17T03:42:43.340",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.8,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "vulnerabilitylab@mend.io",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-25980",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-04-30T15:29:27.390742Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2021-11-11T07:15:11.380",
  "references": [
    {
      "source": "vulnerabilitylab@mend.io",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/debiki/talkyard/commit/4067e191a909ed06f250d09a40e43aa5edbb0289"
    },
    {
      "source": "vulnerabilitylab@mend.io",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25980"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/debiki/talkyard/commit/4067e191a909ed06f250d09a40e43aa5edbb0289"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25980"
    }
  ],
  "sourceIdentifier": "vulnerabilitylab@mend.io",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-74"
        }
      ],
      "source": "vulnerabilitylab@mend.io",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-74"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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