CVE-2026-28871

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{"affected": [{"affectedData": [{"product": "Safari", "vendor": "Apple", "versions": [{"lessThan": "26.4", "status": "affected", "version": "0", "versionType": "custom"}]}, {"product": "iOS and iPadOS", "vendor": "Apple", "versions": [{"lessThan": "18.7.7", "status": "affected", "version": "0", "versionType": "custom"}, {"lessThan": "26.4", "status": "affected", "version": "0", "versionType": "custom"}]}, {"product": "macOS", "vendor": "Apple", "versions": [{"lessThan": "26.4", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "product-security@apple.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*", "matchCriteriaId": "993386B4-0570-414F-B4A6-3E65F5704903", "versionEndExcluding": "26.4", "vulnerable": true}, {"criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*", "matchCriteriaId": "118313FD-8CF6-4412-B1A8-4BC3D5C2F519", "versionEndExcluding": "18.7.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*", "matchCriteriaId": "F201257D-2F7C-43AA-BD51-ED5EC98F99E0", "versionEndExcluding": "26.4", "versionStartIncluding": "26.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*", "matchCriteriaId": "684E10EB-D01A-4E80-8764-B48B554B0B5E", "versionEndExcluding": "18.7.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*", "matchCriteriaId": "F7F08C35-7A60-4FEC-8D44-533902F43EDD", "versionEndExcluding": "26.4", "versionStartIncluding": "26.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "matchCriteriaId": "DCFD15D9-91CA-4342-9F7E-A219B459B755", "versionEndExcluding": "26.4", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A logic issue was addressed with improved checks. This issue is fixed in Safari 26.4, iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4. Visiting a maliciously crafted website may lead to a cross-site scripting attack."}, {"lang": "es", "value": "Un problema de l\u00f3gica se abord\u00f3 con comprobaciones mejoradas. Este problema se solucion\u00f3 en Safari 26.4, iOS 18.7.7 y iPadOS 18.7.7, iOS 26.4 y iPadOS 26.4, macOS Tahoe 26.4. Visitar un sitio web dise\u00f1ado con fines maliciosos puede conducir a un ataque de cross-site scripting."}], "id": "CVE-2026-28871", "lastModified": "2026-06-17T10:29:12.513", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-28871", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-27T19:47:46.868438Z", "version": "2.0.3"}}]}, "published": "2026-03-25T01:17:11.110", "references": [{"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/126792"}, {"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/126793"}, {"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/126794"}, {"source": "product-security@apple.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://support.apple.com/en-us/126800"}], "sourceIdentifier": "product-security@apple.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "webkitgtk: Visiting a maliciously crafted website may lead to a cross-site scripting attack", "id": "2453008", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2453008"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N", "status": "draft"}, "cwe": "CWE-79", "details": ["A logic issue was addressed with improved checks. This issue is fixed in Safari 26.4, iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4. Visiting a maliciously crafted website may lead to a cross-site scripting attack.", "A flaw was found in WebKitGTK. A maliciously crafted web page can cause a logic issue due to improper checks and result in a cross-site scripting attack."], "mitigation": {"lang": "en:us", "value": "Do not visit untrusted web pages or load untrusted web content with WebKitGTK.\nIn Red Hat Enterprise Linux 7, the following packages require WebKitGTK4: evolution-data-server, glade, gnome-boxes, gnome-initial-setup, gnome-online-accounts, gnome-shell, shotwell, sushi and yelp.\nThis vulnerability can only be exploited when these packages are installed in the system and being used via a graphical interface to process untrusted web content, via GNOME for example. In gnome-shell, the vulnerability can be exploited by an attacker from the local network without user interaction.\nTo mitigate this vulnerability, consider removing these packages. Note that some of these packages are required by GNOME, removing them will also remove GNOME and other packages, breaking functionality. However, the server can still be used via the terminal interface.\nAdditionally, WebKitGTK3 is not required by any package. Therefore, it can be removed without consequences or break of functionality."}, "name": "CVE-2026-28871", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "webkitgtk", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "webkitgtk3", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "webkitgtk4", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "webkit2gtk3", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "webkit2gtk3", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-03-28T20:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-28871\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-28871\nhttps://webkitgtk.org/security/WSA-2026-0002.html"], "statement": "To exploit this flaw, an attacker needs to trick a user into visiting a maliciously crafted web page. Due to this reason, this flaw has been rated with a moderate severity.", "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,18.7.7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,26.4)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "iOS and iPadOS", "source": "cna", "vendor": "Apple"}, "product": "ios_and_ipados", "vendor": "apple"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,26.4)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "macOS", "source": "cna", "vendor": "Apple"}, "product": "macos", "vendor": "apple"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,26.4)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Safari", "source": "cna", "vendor": "Apple"}, "product": "safari", "vendor": "apple"}], "analysis": {"en": {"generated_at": "2026-03-30T13:22:26.556130+00:00", "value": {"mitigation_remediation": ["Update Safari to version 26.4 or later", "Update iOS to 18.7.7 or later", "Update iPadOS to 18.7.7 or later", "Update macOS to Tahoe 26.4 or later", "If immediate update is not possible, enforce strict content\u2011blocking policies and limit JavaScript execution via device management"], "summary": {"action": "Apply Patch", "impact": "Cross\u2011Site Scripting via Malicious Website"}, "threat_synthesis": {"affected_systems": "Affected products are Apple Safari on macOS, iOS, and iPadOS. The flaw is present in Safari versions prior to 26.4, iOS and iPadOS prior to 18.7.7 (and 26.4), and macOS Tahoe prior to 26.4. Users running any earlier builds are potentially vulnerable.", "description_and_impact": "The vulnerability is a logic issue that allows a malicious website to execute arbitrary scripting code within the browsing context. Because the flaw was not properly checked, a site can cause the browser to run any JavaScript entered by the attacker. This results in a classic cross\u2011site scripting attack that can compromise user data, session credentials, or execute further malicious payloads. The weakness is classified as CWE\u201179.", "risk_and_exploitability": "The CVSS base score is 4.3, indicating low\u2011to\u2011moderate severity, and the EPSS score is less than 1\u202f%, suggesting a low probability of exploitation in the wild. Apple has not listed this vulnerability in the KEV catalog. The attack likely requires a user to visit a crafted site, so the vector is remote web-based. The overall risk is modest, but any reachable data could be exposed if the site is visited."}}}}, "created": "2026-03-25T11:37:08.461324+00:00", "updated": "2026-03-30T20:58:01.387451+00:00", "vendors": ["apple", "apple$PRODUCT$ios_and_ipados", "apple$PRODUCT$macos", "apple$PRODUCT$safari"]}