CVE-2026-108580 (GCVE-0-2026-108580)

Vulnerability from cvelistv5 – Published: 2026-10-10 15:57 – Updated: 2026-10-10 15:57
VLAI
Title
AniWorld Downloader before 5.3.0 WebUI Login Brute Force via /login
Summary
AniWorld Downloader before 5.3.0 contains an improper restriction of authentication attempts vulnerability in the WebUI /login POST handler that allows unauthenticated attackers to guess passwords without throttling. Attackers can enumerate usernames through verify_user response timing and brute-force passwords on exposed WebUI instances to take over accounts.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CWE
  • CWE-307 - Improper Restriction of Excessive Authentication Attempts
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 5496 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
phoenixthrush AniWorld Downloader Affected: 0 , < 5.3.0 (semver)
guessed Create a notification for this product.
Date Public
2026-10-01 00:00
Credits
SiroxCW HaiND from the Post and Telecommunication Institute of Technology
Show details on NVD website
To clipboard 

{
  "containers": {
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        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:pypi/aniworld",
          "product": "AniWorld Downloader",
          "repo": "https://github.com/phoenixthrush/AniWorld-Downloader",
          "vendor": "phoenixthrush",
          "versions": [
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              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
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          "type": "finder",
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        },
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          "type": "finder",
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        }
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      "descriptions": [
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        }
      ],
      "metrics": [
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            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
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              "lang": "en",
              "type": "CWE"
            }
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        }
      ],
      "providerMetadata": {
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        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/phoenixthrush/AniWorld-Downloader/issues/334"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/phoenixthrush/AniWorld-Downloader/commit/3c070bd10665377308a3092e11933681c18a5fd1"
        },
        {
          "name": "AniWorld Downloader v.5.3.0 Release Notes",
          "tags": [
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          ],
          "url": "https://github.com/phoenixthrush/AniWorld-Downloader/releases/tag/v.5.3.0"
        },
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://hackmd.io/@haind/aniworld-login-brute-force"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/phoenixthrush/AniWorld-Downloader/blob/bb13599d17937fdb4df2df699024bc233f0656f2/src/aniworld/web/auth.py#L239-L256"
        },
        {
          "name": "VulnCheck Advisory: AniWorld Downloader before 5.3.0 WebUI Login Brute Force via /login",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/aniworld-downloader-before-5.3.0-webui-login-brute-force-via-login"
        }
      ],
      "title": "AniWorld Downloader before 5.3.0 WebUI Login Brute Force via /login",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-108580",
    "datePublished": "2026-10-10T15:57:49.256Z",
    "dateReserved": "2026-10-10T15:51:34.830Z",
    "dateUpdated": "2026-10-10T15:57:49.256Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
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      "date": "2026-10-11",
      "epss": "0.00264",
      "percentile": "0.16945"
    },
    "nvd": {
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                "vendor": "phoenixthrush",
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                    "status": "affected",
                    "version": "0",
                    "versionType": "semver"
                  }
                ]
              }
            ],
            "source": "disclosure@vulncheck.com"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
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            "value": "AniWorld Downloader before 5.3.0 contains an improper restriction of authentication attempts vulnerability in the WebUI /login POST handler that allows unauthenticated attackers to guess passwords without throttling. Attackers can enumerate usernames through verify_user response timing and brute-force passwords on exposed WebUI instances to take over accounts."
          }
        ],
        "id": "CVE-2026-108580",
        "lastModified": "2026-10-10T16:16:31.240",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 6.5,
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                "confidentialityImpact": "LOW",
                "integrityImpact": "LOW",
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                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
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            }
          ],
          "cvssMetricV40": [
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              "cvssData": {
                "Automatable": "NOT_DEFINED",
                "Recovery": "NOT_DEFINED",
                "Safety": "NOT_DEFINED",
                "attackComplexity": "LOW",
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                "availabilityRequirement": "NOT_DEFINED",
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                "baseSeverity": "MEDIUM",
                "confidentialityRequirement": "NOT_DEFINED",
                "exploitMaturity": "NOT_DEFINED",
                "integrityRequirement": "NOT_DEFINED",
                "modifiedAttackComplexity": "NOT_DEFINED",
                "modifiedAttackRequirements": "NOT_DEFINED",
                "modifiedAttackVector": "NOT_DEFINED",
                "modifiedPrivilegesRequired": "NOT_DEFINED",
                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
                "modifiedSubIntegrityImpact": "NOT_DEFINED",
                "modifiedUserInteraction": "NOT_DEFINED",
                "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
                "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
                "modifiedVulnIntegrityImpact": "NOT_DEFINED",
                "privilegesRequired": "NONE",
                "providerUrgency": "NOT_DEFINED",
                "subAvailabilityImpact": "NONE",
                "subConfidentialityImpact": "NONE",
                "subIntegrityImpact": "NONE",
                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
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            "source": "disclosure@vulncheck.com",
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      }
    }
  }
}



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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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