{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-1015", "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "state": "PUBLISHED", "assignerShortName": "mozilla", "dateReserved": "2025-02-04T07:26:39.563Z", "datePublished": "2025-02-04T13:58:56.867Z", "dateUpdated": "2026-04-13T14:30:36.941Z"}, "containers": {"cna": {"affected": [{"product": "Thunderbird", "vendor": "Mozilla", "versions": [{"status": "unaffected", "version": "128.7", "lessThanOrEqual": "128.*", "versionType": "rpm"}, {"status": "unaffected", "version": "135", "lessThanOrEqual": "*", "versionType": "rpm"}]}], "descriptions": [{"lang": "en", "value": "The Thunderbird Address Book URI fields contained unsanitized links. This could be used by an attacker to create and export an address book containing a malicious payload in a field. For example, in the \u201cOther\u201d field of the Instant Messaging section. If another user imported the address book, clicking on the link could result in opening a web page inside Thunderbird, and that page could execute (unprivileged) JavaScript. This vulnerability was fixed in Thunderbird 128.7 and Thunderbird 135.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "The Thunderbird Address Book URI fields contained unsanitized links. This could be used by an attacker to create and export an address book containing a malicious payload in a field. For example, in the \u201cOther\u201d field of the Instant Messaging section. If another user imported the address book, clicking on the link could result in opening a web page inside Thunderbird, and that page could execute (unprivileged) JavaScript. This vulnerability was fixed in Thunderbird 128.7 and Thunderbird 135."}]}], "title": "Unsanitized address book fields", "references": [{"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1939458"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2025-10/"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2025-11/"}], "credits": [{"lang": "en", "value": "r3m0t3nu11"}], "providerMetadata": {"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "shortName": "mozilla", "dateUpdated": "2026-04-13T14:30:36.941Z"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-79", "lang": "en", "description": "CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')"}]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2025-02-06T21:07:46.670064Z", "id": "CVE-2025-1015", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-02-06T21:15:09.881Z"}}]}}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*", "matchCriteriaId": "0504330C-A82A-4E1E-9774-38CCB3DF8D92", "versionEndExcluding": "128.7.0", "versionStartIncluding": "128.0.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The Thunderbird Address Book URI fields contained unsanitized links. This could be used by an attacker to create and export an address book containing a malicious payload in a field. For example, in the \u201cOther\u201d field of the Instant Messaging section. If another user imported the address book, clicking on the link could result in opening a web page inside Thunderbird, and that page could execute (unprivileged) JavaScript. This vulnerability was fixed in Thunderbird 128.7 and Thunderbird 135."}, {"lang": "es", "value": "Los campos URI de la libreta de direcciones de Thunderbird conten\u00edan enlaces no desinfectada. Un atacante podr\u00eda utilizar esto para crear y exportar una libreta de direcciones que contuviera un payload malicioso en un campo. Por ejemplo, en el campo \u201cOtros\u201d de la secci\u00f3n de mensajer\u00eda instant\u00e1nea. Si otro usuario importaba la libreta de direcciones, al hacer clic en el enlace se pod\u00eda abrir una p\u00e1gina web dentro de Thunderbird y esa p\u00e1gina pod\u00eda ejecutar JavaScript (sin privilegios). Esta vulnerabilidad afecta a Thunderbird < 128.7."}], "id": "CVE-2025-1015", "lastModified": "2026-04-13T15:16:50.267", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.5, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.5, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2025-02-04T14:15:32.363", "references": [{"source": "security@mozilla.org", "tags": ["Permissions Required"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1939458"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2025-10/"}, {"source": "security@mozilla.org", "url": "https://www.mozilla.org/security/advisories/mfsa2025-11/"}], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-79"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"affected_release": [{"advisory": "RHSA-2025:1292", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "thunderbird-0:128.7.0-1.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2025-02-11T00:00:00Z"}, {"advisory": "RHSA-2025:1348", "cpe": "cpe:/a:redhat:rhel_aus:8.2", "package": "thunderbird-0:128.7.0-1.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Advanced Update Support", "release_date": "2025-02-12T00:00:00Z"}, {"advisory": "RHSA-2025:1339", "cpe": "cpe:/a:redhat:rhel_aus:8.4", "package": "thunderbird-0:128.7.0-1.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support", "release_date": "2025-02-12T00:00:00Z"}, {"advisory": "RHSA-2025:1339", "cpe": "cpe:/a:redhat:rhel_tus:8.4", "package": "thunderbird-0:128.7.0-1.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Telecommunications Update Service", "release_date": "2025-02-12T00:00:00Z"}, {"advisory": "RHSA-2025:1339", "cpe": "cpe:/a:redhat:rhel_e4s:8.4", "package": "thunderbird-0:128.7.0-1.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions", "release_date": "2025-02-12T00:00:00Z"}, {"advisory": "RHSA-2025:1341", "cpe": "cpe:/a:redhat:rhel_aus:8.6", "package": "thunderbird-0:128.7.0-1.el8_6", "product_name": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support", "release_date": "2025-02-12T00:00:00Z"}, {"advisory": "RHSA-2025:1341", "cpe": "cpe:/a:redhat:rhel_tus:8.6", "package": "thunderbird-0:128.7.0-1.el8_6", "product_name": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service", "release_date": "2025-02-12T00:00:00Z"}, {"advisory": "RHSA-2025:1341", "cpe": "cpe:/a:redhat:rhel_e4s:8.6", "package": "thunderbird-0:128.7.0-1.el8_6", "product_name": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions", "release_date": "2025-02-12T00:00:00Z"}, {"advisory": "RHSA-2025:1340", "cpe": "cpe:/a:redhat:rhel_eus:8.8", "package": "thunderbird-0:128.7.0-1.el8_8", "product_name": "Red Hat Enterprise Linux 8.8 Extended Update Support", "release_date": "2025-02-12T00:00:00Z"}, {"advisory": "RHSA-2025:1184", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "thunderbird-0:128.7.0-1.el9_5", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-02-10T00:00:00Z"}, {"advisory": "RHSA-2025:1319", "cpe": "cpe:/a:redhat:rhel_e4s:9.0", "package": "thunderbird-0:128.7.0-1.el9_0", "product_name": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions", "release_date": "2025-02-11T00:00:00Z"}, {"advisory": "RHSA-2025:1317", "cpe": "cpe:/a:redhat:rhel_eus:9.2", "package": "thunderbird-0:128.7.0-1.el9_2", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2025-02-11T00:00:00Z"}, {"advisory": "RHSA-2025:1318", "cpe": "cpe:/a:redhat:rhel_eus:9.4", "package": "thunderbird-0:128.7.0-1.el9_4", "product_name": "Red Hat Enterprise Linux 9.4 Extended Update Support", "release_date": "2025-02-11T00:00:00Z"}], "bugzilla": {"description": "thunderbird: Unsanitized address book fields", "id": "2343759", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2343759"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.4", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N", "status": "verified"}, "cwe": "CWE-601", "details": ["The Thunderbird Address Book URI fields contained unsanitized links. This could be used by an attacker to create and export an address book containing a malicious payload in a field. For example, in the \u201cOther\u201d field of the Instant Messaging section. If another user imported the address book, clicking on the link could result in opening a web page inside Thunderbird, and that page could execute (unprivileged) JavaScript. This vulnerability affects Thunderbird < 128.7 and Thunderbird < 135.", "A flaw was found in Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: The Thunderbird Address Book URI fields contained unsanitized links. This could be used by an attacker to create and export an address book containing a malicious payload in a field. For example, in the \"Other\" field of the Instant Messaging section. If another user imported the address book, clicking on the link could result in opening a web page inside Thunderbird and that page could execute (unprivileged) JavaScript."], "name": "CVE-2025-1015", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "thunderbird-flatpak-container", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "thunderbird-flatpak-container", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-04T13:58:56Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-1015\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-1015\nhttps://bugzilla.mozilla.org/show_bug.cgi?id=1939458\nhttps://www.mozilla.org/security/advisories/mfsa2025-10/"], "statement": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "threat_severity": "Low"}

{"analysis": {"en": {"generated_at": "2026-04-20T18:26:29.626837+00:00", "value": {"mitigation_remediation": ["Upgrade Thunderbird to the latest available version (at least 128.7 for the standard release or 135 for the extended support channel).", "Avoid importing address books from unknown or untrusted sources; verify the integrity of the address book before opening it.", "Use email filtering and attachment scanning to detect and block malicious address books that may contain embedded links."], "summary": {"action": "Apply Patch", "impact": "Untrusted Code Execution via Embedded Links in Thunderbird"}, "threat_synthesis": {"affected_systems": "All users of Mozilla Thunderbird running versions prior to 128.7 and 135 are affected. The vulnerability is not tied to a specific operating system, but the associated CPEs include various Red\u00a0Hat Enterprise Linux releases that may host Thunderbird. Any installation that imports address books from untrusted sources can be impacted.", "description_and_impact": "This vulnerability stems from unsanitized URI fields in the Thunderbird Address Book. A malicious address book can contain links that, when imported and clicked by a user, launch a web page within Thunderbird. The page is able to execute unprivileged JavaScript, potentially allowing an attacker to perform arbitrary script operations in the context of the Thunderbird client. The weakness is related to CWE-79 (Cross\u2011Site Scripting) and CWE-601 (Open Redirect), and can lead to data theft, phishing, or further exploitation within the user's environment.", "risk_and_exploitability": "The CVSS score of 5.4 indicates a moderate severity, while the EPSS score of 24% reflects a relatively high likelihood that attackers will exploit this flaw in the near term. Because the attack requires the victim to import a crafted address book and click the malicious link, it is a user\u2011interaction vector that is easier to execute with social engineering. The vulnerability is not listed in the CISA KEV catalog, but given its attack surface and exploitation probability, an organization should treat it as a significant risk."}}}}, "created": "2026-04-20T18:30:13.981015+00:00", "updated": "2026-04-20T18:30:13.981031+00:00", "vendors": []}