169 lines
6.9 KiB
JSON
169 lines
6.9 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-2026-16434",
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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": "2026-07-21T01:28:32.813Z",
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"datePublished": "2026-08-25T01:29:57.018Z",
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"dateUpdated": "2026-08-27T14:34:04.155Z"
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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": "2026-08-25T01:29:57.018Z"
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},
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"datePublic": "2026-07-21T00:00:00.000Z",
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"title": "Adminer before 5.5.1 X-Forwarded-Prefix Backslash Bypass",
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"descriptions": [
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{
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"lang": "en",
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"value": "Adminer 4.6.0 through 5.5.0 (fixed in 5.5.1) contains an incomplete fix for a prior X-Forwarded-Prefix vulnerability (GHSA-8478-xrj3-h9c2). The validation guard (bootstrap.inc.php) only rejects prefixes matching ^/[^/], blocking //evil.com but allowing values such as /\\evil.com whose second character is a backslash. Because browsers normalize backslash to forward slash, a network-path reference survives into REQUEST_URI and reaches cookie_path(), affecting the Set-Cookie Path attribute. Exploitation requires that clients can set the X-Forwarded-Prefix header (a misconfigured or absent reverse proxy). Impact is limited to anomalous cookie-path scoping."
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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 Input Validation",
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"cweId": "CWE-20",
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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": "vrana",
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"product": "adminer",
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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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"lessThan": "5.5.1"
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},
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{
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"version": "5.5.1",
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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:adminer:adminer:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "5.5.1"
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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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"format": "CVSS",
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"cvssV4_0": {
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"version": "4.0",
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"vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
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"attackVector": "NETWORK",
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"attackComplexity": "HIGH",
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"attackRequirements": "NONE",
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"privilegesRequired": "NONE",
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"userInteraction": "PASSIVE",
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"vulnConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "LOW",
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"vulnAvailabilityImpact": "NONE",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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"baseScore": 2.3,
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"baseSeverity": "LOW"
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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/vrana/adminer/security/advisories/GHSA-fr74-9mf9-gf44",
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"tags": [
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"vendor-advisory"
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],
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"name": "GitHub Security Advisory (GHSA-fr74-9mf9-gf44)"
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},
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{
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"name": "VulnCheck Advisory: Adminer before 5.5.1 X-Forwarded-Prefix Backslash Bypass",
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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/adminer-before-x-forwarded-prefix-backslash-bypass"
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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": "Infinit3i",
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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/vrana/adminer/security/advisories/GHSA-fr74-9mf9-gf44",
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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": "2026-08-27T14:31:46.966890Z",
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"id": "CVE-2026-16434",
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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": "yes"
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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": "2026-08-27T14:34:04.155Z"
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}
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}
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]
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}
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} |