Vulnerability-Lookup

CVE-2025-63950 (GCVE-0-2025-63950)

Vulnerability from cvelistv5 – Published: 2025-12-18 00:00 – Updated: 2025-12-18 21:20

Summary

An insecure deserialization vulnerability exists in the download.php script of the to3k Twittodon application through commit b1c58a7d1dc664b38deb486ca290779621342c0b (2023-02-28). The 'obj' parameter receives base64-encoded data that is passed directly to the unserialize() function without validation. This allows a remote, unauthenticated attacker to inject arbitrary PHP objects, leading to a denial of service.

Severity

7.5 (High)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-12-18 21:20 UTC

CWE

n/a
CWE-502 - Deserialization of Untrusted Data

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2255 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/solonbarroso/vulnerability-res…
https://github.com/solonbarroso/vulnerability-res…

Show details on NVD website

JSON

To clipboard

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          },
          {
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          }
        ],
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                "userInteraction": "NONE",
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      "product_status:known_not_affected": "1",
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      "status": "final",
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      "version": "3"
    },
    "vulnrichment": {
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                  "userInteraction": "NONE",
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            },
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        ],
        "cna": {
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              "vendor": "n/a",
              "versions": [
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          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "An insecure deserialization vulnerability exists in the download.php script of the to3k Twittodon application through commit b1c58a7d1dc664b38deb486ca290779621342c0b (2023-02-28). The \u0027obj\u0027 parameter receives base64-encoded data that is passed directly to the unserialize() function without validation. This allows a remote, unauthenticated attacker to inject arbitrary PHP objects, leading to a denial of service."
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}

FKIE_CVE-2025-63950

Vulnerability from fkie_nvd - Published: 2025-12-18 21:15 - Updated: 2026-10-13 11:10

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

References

	URL	Tags
	cve@mitre.org	https://github.com/solonbarroso/vulnerability-research/blob/main/advisories/Twittodon/CVE-2025-63950.md	Exploit, Third Party Advisory
	cve@mitre.org	https://github.com/solonbarroso/vulnerability-research/blob/main/advisories/Twittodon/CVE-pending-Deserialization.md	Exploit, Third Party Advisory

Impacted products

	Vendor	Product	Version
	tomaszdunia	twittodon	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:tomaszdunia:twittodon:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "ABA7F1E5-E1B6-4D09-B4EE-257059327575",
              "versionEndIncluding": "2023-02-28",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An insecure deserialization vulnerability exists in the download.php script of the to3k Twittodon application through commit b1c58a7d1dc664b38deb486ca290779621342c0b (2023-02-28). The \u0027obj\u0027 parameter receives base64-encoded data that is passed directly to the unserialize() function without validation. This allows a remote, unauthenticated attacker to inject arbitrary PHP objects, leading to a denial of service."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de deserializaci\u00f3n insegura existe en el script download.php de la aplicaci\u00f3n to3k Twittodon a trav\u00e9s del commit b1c58a7d1dc664b38deb486ca290779621342c0b (2023-02-28). El par\u00e1metro \u0027obj\u0027 recibe datos codificados en base64 que se pasan directamente a la funci\u00f3n unserialize() sin validaci\u00f3n. Esto permite a un atacante remoto y no autenticado inyectar objetos PHP arbitrarios, lo que lleva a una denegaci\u00f3n de servicio."
    }
  ],
  "id": "CVE-2025-63950",
  "lastModified": "2026-10-13T11:10:00.203",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
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        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
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    },
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    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
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          "value": "CWE-502"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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}

GHSA-H848-297Q-7V3G

Vulnerability from github – Published: 2025-12-18 21:31 – Updated: 2025-12-19 00:31

Details

Severity

7.5 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2025-63950"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-18T21:15:54Z",
    "severity": "HIGH"
  },
  "details": "An insecure deserialization vulnerability exists in the download.php script of the to3k Twittodon application through commit b1c58a7d1dc664b38deb486ca290779621342c0b (2023-02-28). The \u0027obj\u0027 parameter receives base64-encoded data that is passed directly to the unserialize() function without validation. This allows a remote, unauthenticated attacker to inject arbitrary PHP objects, leading to a denial of service.",
  "id": "GHSA-h848-297q-7v3g",
  "modified": "2025-12-19T00:31:41Z",
  "published": "2025-12-18T21:31:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-63950"
    },
    {
      "type": "WEB",
      "url": "https://github.com/solonbarroso/vulnerability-research/blob/main/advisories/Twittodon/CVE-2025-63950.md"
    },
    {
      "type": "WEB",
      "url": "https://github.com/solonbarroso/vulnerability-research/blob/main/advisories/Twittodon/CVE-pending-Deserialization.md"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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CVE-2025-63950 (GCVE-0-2025-63950)

FKIE_CVE-2025-63950

GHSA-H848-297Q-7V3G

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour