192 lines
8.0 KiB
JSON
192 lines
8.0 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-16889",
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"assignerOrgId": "9c1820ae-fb77-4810-a8aa-ca46e7474d2f",
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"state": "PUBLISHED",
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"assignerShortName": "MON-CSIRT",
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"dateReserved": "2026-07-24T05:06:16.448Z",
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"datePublished": "2026-10-29T01:32:09.466Z",
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"dateUpdated": "2026-10-29T02:02:13.700Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "9c1820ae-fb77-4810-a8aa-ca46e7474d2f",
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"shortName": "MON-CSIRT",
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"dateUpdated": "2026-10-29T01:32:09.466Z"
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},
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"title": "Stored XSS via Pre-Login Notice Image Upload Serves Attacker HTML from Application Origin",
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"cweId": "CWE-434",
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"description": "CWE-434 Unrestricted upload of file with dangerous type",
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"type": "CWE"
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}
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]
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}
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],
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"impacts": [
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{
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"capecId": "CAPEC-592",
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"descriptions": [
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{
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"lang": "en",
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"value": "CAPEC-592 Stored XSS"
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}
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]
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},
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{
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"capecId": "CAPEC-23",
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"descriptions": [
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{
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"lang": "en",
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"value": "CAPEC-23 File Content Injection"
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}
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]
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}
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],
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"affected": [
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{
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"vendor": "Apereo Foundation",
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"product": "openEQUELLA",
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"versions": [
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{
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"status": "affected",
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"version": "2019.1",
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"lessThan": "2026.1",
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"versionType": "custom"
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}
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],
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"defaultStatus": "unaffected"
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"value": "In openEQUELLA before 2026.1, the pre-login notice image upload endpoint (PUT /api/preloginnotice/image/{name}) does not validate the type of uploaded files and serves them with a Content-Type derived from the supplied filename. A user holding the EDIT_SYSTEM_SETTINGS permission can upload an HTML file that is then served as text/html from the openEQUELLA origin, resulting in stored cross-site scripting. Unauthenticated exploitation is possible where EDIT_SYSTEM_SETTINGS has been granted to the guest user or everyone.",
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"supportingMedia": [
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{
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"type": "text/html",
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"base64": false,
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"value": "<p>In openEQUELLA before 2026.1, the pre-login notice image upload endpoint (PUT /api/preloginnotice/image/{name}) does not validate the type of uploaded files and serves them with a Content-Type derived from the supplied filename. A user holding the EDIT_SYSTEM_SETTINGS permission can upload an HTML file that is then served as text/html from the openEQUELLA origin, resulting in stored cross-site scripting. Unauthenticated exploitation is possible where EDIT_SYSTEM_SETTINGS has been granted to the guest user or everyone.</p><br>"
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}
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]
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}
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],
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"references": [
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{
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"url": "https://github.com/openequella/openEQUELLA/security/advisories/GHSA-q2xv-rffq-mj5w",
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"tags": [
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"vendor-advisory"
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]
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},
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{
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"url": "https://openequella.github.io/guides/",
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"tags": [
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"product"
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]
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}
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],
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"metrics": [
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{
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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],
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"cvssV4_0": {
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"privilegesRequired": "HIGH",
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"userInteraction": "PASSIVE",
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"vulnConfidentialityImpact": "NONE",
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"subConfidentialityImpact": "LOW",
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"vulnIntegrityImpact": "NONE",
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"subIntegrityImpact": "LOW",
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"vulnAvailabilityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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"exploitMaturity": "NOT_DEFINED",
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"Safety": "NOT_DEFINED",
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"Automatable": "NOT_DEFINED",
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"Recovery": "NOT_DEFINED",
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"valueDensity": "NOT_DEFINED",
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"vulnerabilityResponseEffort": "NOT_DEFINED",
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"providerUrgency": "NOT_DEFINED",
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"version": "4.0",
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"baseSeverity": "MEDIUM",
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"baseScore": 4.8,
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"
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}
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}
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],
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"solutions": [
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{
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"lang": "en",
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"value": "Update to vendor recommended versions",
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"supportingMedia": [
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{
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"type": "text/html",
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"base64": false,
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"value": "<p>Update to vendor recommended versions</p><br>"
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}
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]
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}
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],
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"credits": [
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{
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"lang": "en",
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"value": "Lê Ngọc Bảo Minh ( University of Information Technology: VNUHCM - UIT )",
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"type": "finder"
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}
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],
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"source": {
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"discovery": "UNKNOWN"
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},
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"x_generator": {
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"engine": "Vulnogram 1.0.4"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2026-16889",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-10-29T01:51:03.808908Z"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-10-29T02:02:13.700Z"
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}
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}
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]
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}
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} |