193 lines
8.1 KiB
JSON
193 lines
8.1 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-2026-85600",
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"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"state": "PUBLISHED",
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"assignerShortName": "VulnCheck",
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"dateReserved": "2026-09-04T11:00:28.731Z",
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"datePublished": "2026-09-04T11:30:02.813Z",
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"dateUpdated": "2026-09-05T10:28:17.769Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"shortName": "VulnCheck",
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"dateUpdated": "2026-09-05T10:28:17.769Z"
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},
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"datePublic": "2026-08-20T00:00:00.000Z",
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"title": "Grav Admin before 2.0.21 Stored XSS via username",
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"descriptions": [
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{
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"lang": "en",
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"value": "Grav Admin (getgrav/grav-plugin-admin2) versions <= 2.0.19 contain a stored cross-site scripting vulnerability in the tHtml() function (src/lib/stores/i18n.svelte.ts), which substitutes untrusted parameters such as usernames into translation templates before parsing the result as markdown. Grav's server-side username validation (DataUser::isValidUsername) blocks filesystem-dangerous characters but not <, >, \", or ', allowing an attacker to register a username containing an HTML payload. When an administrator views a UI surface that renders the username through tHtml()—such as the two-factor force-disable confirmation prompt or the 'page is locked' editor notice—the payload executes in their authenticated session. Fixed in 2.0.21."
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}
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],
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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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"description": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
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"cweId": "CWE-79",
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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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"affected": [
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{
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"vendor": "getgrav",
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"product": "grav-plugin-admin2",
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"defaultStatus": "unaffected",
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"versions": [
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{
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"version": "0",
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"status": "affected",
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"versionType": "semver",
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"lessThanOrEqual": "2.0.19"
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},
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{
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"version": "2.0.21",
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"status": "unaffected",
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"versionType": "semver"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:a:getgrav:grav:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "2.0.21"
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}
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]
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}
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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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"cvssV4_0": {
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"Automatable": "NOT_DEFINED",
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"Recovery": "NOT_DEFINED",
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"Safety": "NOT_DEFINED",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"attackVector": "NETWORK",
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"baseScore": 5.1,
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"baseSeverity": "MEDIUM",
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"exploitMaturity": "NOT_DEFINED",
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"privilegesRequired": "LOW",
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"providerUrgency": "NOT_DEFINED",
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"subAvailabilityImpact": "NONE",
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"subConfidentialityImpact": "LOW",
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"subIntegrityImpact": "LOW",
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"userInteraction": "PASSIVE",
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"valueDensity": "NOT_DEFINED",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
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"version": "4.0",
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"vulnAvailabilityImpact": "NONE",
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"vulnConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "NONE",
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"vulnerabilityResponseEffort": "NOT_DEFINED"
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},
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"format": "CVSS"
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},
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "NONE",
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"baseScore": 5.4,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "LOW",
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"integrityImpact": "LOW",
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"privilegesRequired": "LOW",
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"scope": "CHANGED",
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"userInteraction": "REQUIRED",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
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"version": "3.1"
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},
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"format": "CVSS"
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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/getgrav/grav/security/advisories/GHSA-96xm-c5hr-59rx",
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"tags": [
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"vendor-advisory"
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],
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"name": "GitHub Security Advisory (GHSA-96xm-c5hr-59rx)"
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},
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{
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"name": "VulnCheck Advisory: Grav Admin before 2.0.21 Stored XSS via username",
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"tags": [
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"third-party-advisory"
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],
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"url": "https://www.vulncheck.com/advisories/grav-admin-before-2.0.21-stored-xss-via-username"
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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": "alham-rizvi",
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"type": "reporter"
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}
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],
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"x_generator": {
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"engine": "vulncheck-endgame"
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}
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},
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"adp": [
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{
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"references": [
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{
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"url": "https://github.com/getgrav/grav/security/advisories/GHSA-96xm-c5hr-59rx",
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"tags": [
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"exploit"
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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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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-09-04T13:53:08.429568Z",
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"id": "CVE-2026-85600",
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"options": [
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{
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"Exploitation": "poc"
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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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"role": "CISA Coordinator",
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"version": "2.0.3"
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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": "2026-09-04T13:54:30.112Z"
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}
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}
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]
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}
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} |