cve-2025-6430
Vulnerability from cvelistv5
Published
2025-06-24 12:28
Modified
2025-07-14 18:26
Severity ?
EPSS score ?
Summary
When a file download is specified via the `Content-Disposition` header, that directive would be ignored if the file was included via a `<embed>` or `<object>` tag, potentially making a website vulnerable to a cross-site scripting attack. This vulnerability affects Firefox < 140, Firefox ESR < 128.12, Thunderbird < 140, and Thunderbird < 128.12.
References
Impacted products
▼ | Vendor | Product |
---|---|---|
Mozilla | Firefox | |
Mozilla | Firefox ESR | |
Mozilla | Thunderbird | |
Mozilla | Thunderbird |
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This vulnerability affects Firefox \u003c 140, Firefox ESR \u003c 128.12, Thunderbird \u003c 140, and Thunderbird \u003c 128.12." } ], "value": "When a file download is specified via the `Content-Disposition` header, that directive would be ignored if the file was included via a `\u0026lt;embed\u0026gt;` or `\u0026lt;object\u0026gt;` tag, potentially making a website vulnerable to a cross-site scripting attack. This vulnerability affects Firefox \u003c 140, Firefox ESR \u003c 128.12, Thunderbird \u003c 140, and Thunderbird \u003c 128.12." } ], "problemTypes": [ { "descriptions": [ { "description": "Content-Disposition header ignored when a file is included in an embed or object tag", "lang": "en", "type": "text" } ] } ], "providerMetadata": { "dateUpdated": "2025-07-14T18:26:52.696Z", "orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "shortName": "mozilla" }, "references": [ { "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1971140" }, { "url": "https://www.mozilla.org/security/advisories/mfsa2025-51/" }, { "url": "https://www.mozilla.org/security/advisories/mfsa2025-53/" }, { "url": "https://www.mozilla.org/security/advisories/mfsa2025-54/" }, { "url": "https://www.mozilla.org/security/advisories/mfsa2025-55/" } ] } }, "cveMetadata": { "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "assignerShortName": "mozilla", "cveId": "CVE-2025-6430", "datePublished": "2025-06-24T12:28:01.020Z", "dateReserved": "2025-06-20T14:51:35.561Z", "dateUpdated": "2025-07-14T18:26:52.696Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2025-6430\",\"sourceIdentifier\":\"security@mozilla.org\",\"published\":\"2025-06-24T13:15:23.993\",\"lastModified\":\"2025-07-14T19:15:34.660\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"When a file download is specified via the `Content-Disposition` header, that directive would be ignored if the file was included via a `\u0026lt;embed\u0026gt;` or `\u0026lt;object\u0026gt;` tag, potentially making a website vulnerable to a cross-site scripting attack. This vulnerability affects Firefox \u003c 140, Firefox ESR \u003c 128.12, Thunderbird \u003c 140, and Thunderbird \u003c 128.12.\"},{\"lang\":\"es\",\"value\":\"Cuando se especifica la descarga de un archivo mediante el encabezado `Content-Disposition`, esta directiva se ignora si el archivo se incluye mediante una etiqueta `` u ``, lo que podr\u00eda hacer que un sitio web sea vulnerable a un ataque de cross-site scripting. Esta vulnerabilidad afecta a Firefox \u0026lt; 140 y Firefox ESR \u0026lt; 128.12.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N\",\"baseScore\":6.1,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":2.7}]},\"weaknesses\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-79\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*\",\"versionEndExcluding\":\"128.12.0\",\"matchCriteriaId\":\"18420C6D-A5DF-41A4-8A81-F1BBFBA1BE2A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*\",\"versionEndExcluding\":\"140.0\",\"matchCriteriaId\":\"77D2BF2A-26A3-4664-93B5-B41BCF17AC9E\"}]}]}],\"references\":[{\"url\":\"https://bugzilla.mozilla.org/show_bug.cgi?id=1971140\",\"source\":\"security@mozilla.org\",\"tags\":[\"Permissions Required\"]},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2025-51/\",\"source\":\"security@mozilla.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2025-53/\",\"source\":\"security@mozilla.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2025-54/\",\"source\":\"security@mozilla.org\"},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2025-55/\",\"source\":\"security@mozilla.org\"}]}}" } }
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.