CVE-2025-14331 (GCVE-0-2025-14331)
Vulnerability from cvelistv5 – Published: 2025-12-09 13:38 – Updated: 2026-04-13 14:25
VLAI
Title
Same-origin policy bypass in the Request Handling component
Summary
Same-origin policy bypass in the Request Handling component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-346 - Origin Validation Error
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.31 , ≤ 115.*
(rpm)
Unaffected: 140.6 , ≤ 140.* (rpm) Unaffected: 146 , ≤ * (rpm) |
|
| Mozilla | Thunderbird |
Unaffected:
140.6 , ≤ 140.*
(rpm)
Unaffected: 146 , ≤ * (rpm) |
Credits
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2025-14331",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-12-09T16:59:10.319738Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-346",
"description": "CWE-346 Origin Validation Error",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-12-09T16:59:50.907Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "115.*",
"status": "unaffected",
"version": "115.31",
"versionType": "rpm"
},
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.6",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "146",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.6",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "146",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Igor Morgenstern"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Same-origin policy bypass in the Request Handling component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6."
}
],
"value": "Same-origin policy bypass in the Request Handling component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6."
}
],
"providerMetadata": {
"dateUpdated": "2026-04-13T14:25:43.540Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2000218"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2025-92/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2025-93/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2025-94/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2025-95/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2025-96/"
}
],
"title": "Same-origin policy bypass in the Request Handling component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2025-14331",
"datePublished": "2025-12-09T13:38:07.191Z",
"dateReserved": "2025-12-09T13:38:06.607Z",
"dateUpdated": "2026-04-13T14:25:43.540Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2025-14331",
"date": "2026-06-04",
"epss": "0.00037",
"percentile": "0.11397"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2025-14331\",\"sourceIdentifier\":\"security@mozilla.org\",\"published\":\"2025-12-09T16:17:40.773\",\"lastModified\":\"2026-04-13T15:16:46.673\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Same-origin policy bypass in the Request Handling component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":2.5},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":2.5}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-346\"}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-346\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*\",\"versionEndExcluding\":\"115.31.0\",\"matchCriteriaId\":\"22C1C512-2D57-4BCB-ABE2-5CA41F354AA1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*\",\"versionEndExcluding\":\"146.0\",\"matchCriteriaId\":\"3EF4CBBC-DCB5-4540-8B8A-91DA759ED631\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*\",\"versionStartIncluding\":\"116.0\",\"versionEndExcluding\":\"140.6.0\",\"matchCriteriaId\":\"AB211B63-E6CF-4D11-BCEE-CF495FA0B0EF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*\",\"versionEndExcluding\":\"140.6.0\",\"matchCriteriaId\":\"F04F8674-52CC-4217-B94A-8C5E80C5B996\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*\",\"versionEndExcluding\":\"146.0\",\"matchCriteriaId\":\"1CB46BC7-512D-45BF-BCF4-73FDDF94DBAF\"}]}]}],\"references\":[{\"url\":\"https://bugzilla.mozilla.org/show_bug.cgi?id=2000218\",\"source\":\"security@mozilla.org\",\"tags\":[\"Issue Tracking\",\"Permissions Required\"]},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2025-92/\",\"source\":\"security@mozilla.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2025-93/\",\"source\":\"security@mozilla.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2025-94/\",\"source\":\"security@mozilla.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2025-95/\",\"source\":\"security@mozilla.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://www.mozilla.org/security/advisories/mfsa2025-96/\",\"source\":\"security@mozilla.org\",\"tags\":[\"Vendor Advisory\"]}]}}",
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 6.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N\", \"integrityImpact\": \"LOW\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"LOW\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-14331\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-12-09T16:59:10.319738Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-346\", \"description\": \"CWE-346 Origin Validation Error\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-12-09T16:58:42.348Z\"}}], \"cna\": {\"title\": \"Same-origin policy bypass in the Request Handling component\", \"credits\": [{\"lang\": \"en\", \"value\": \"Igor Morgenstern\"}], \"affected\": [{\"vendor\": \"Mozilla\", \"product\": \"Firefox\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"115.31\", \"versionType\": \"rpm\", \"lessThanOrEqual\": \"115.*\"}, {\"status\": \"unaffected\", \"version\": \"140.6\", \"versionType\": \"rpm\", \"lessThanOrEqual\": \"140.*\"}, {\"status\": \"unaffected\", \"version\": \"146\", \"versionType\": \"rpm\", \"lessThanOrEqual\": \"*\"}]}, {\"vendor\": \"Mozilla\", \"product\": \"Thunderbird\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"140.6\", \"versionType\": \"rpm\", \"lessThanOrEqual\": \"140.*\"}, {\"status\": \"unaffected\", \"version\": \"146\", \"versionType\": \"rpm\", \"lessThanOrEqual\": \"*\"}]}], \"references\": [{\"url\": \"https://bugzilla.mozilla.org/show_bug.cgi?id=2000218\"}, {\"url\": \"https://www.mozilla.org/security/advisories/mfsa2025-92/\"}, {\"url\": \"https://www.mozilla.org/security/advisories/mfsa2025-93/\"}, {\"url\": \"https://www.mozilla.org/security/advisories/mfsa2025-94/\"}, {\"url\": \"https://www.mozilla.org/security/advisories/mfsa2025-95/\"}, {\"url\": \"https://www.mozilla.org/security/advisories/mfsa2025-96/\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Same-origin policy bypass in the Request Handling component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"Same-origin policy bypass in the Request Handling component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.\", \"base64\": false}]}], \"providerMetadata\": {\"orgId\": \"f16b083a-5664-49f3-a51e-8d479e5ed7fe\", \"shortName\": \"mozilla\", \"dateUpdated\": \"2026-04-13T14:25:43.540Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2025-14331\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-04-13T14:25:43.540Z\", \"dateReserved\": \"2025-12-09T13:38:06.607Z\", \"assignerOrgId\": \"f16b083a-5664-49f3-a51e-8d479e5ed7fe\", \"datePublished\": \"2025-12-09T13:38:07.191Z\", \"assignerShortName\": \"mozilla\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
Loading…
Loading…