168 lines
7.2 KiB
JSON
168 lines
7.2 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-2026-55660",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-06-17T00:05:03.777Z",
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"datePublished": "2026-07-01T21:00:27.321Z",
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"dateUpdated": "2026-07-02T12:43:47.881Z"
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},
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"containers": {
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"cna": {
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"title": "TinaCMS: Cross-origin postMessage handlers and rich-text URL-sanitization bypass enable stored XSS and session takeover",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-79",
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"lang": "en",
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"description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
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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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"descriptions": [
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{
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"cweId": "CWE-346",
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"lang": "en",
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"description": "CWE-346: Origin Validation Error",
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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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"descriptions": [
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{
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"cweId": "CWE-601",
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"lang": "en",
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"description": "CWE-601: URL Redirection to Untrusted Site ('Open Redirect')",
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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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"descriptions": [
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{
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"cweId": "CWE-940",
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"lang": "en",
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"description": "CWE-940: Improper Verification of Source of a Communication Channel",
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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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"metrics": [
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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": "PRESENT",
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"privilegesRequired": "NONE",
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"userInteraction": "PASSIVE",
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"vulnConfidentialityImpact": "HIGH",
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"vulnIntegrityImpact": "HIGH",
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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": 7.6,
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"baseSeverity": "HIGH",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
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"version": "4.0"
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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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"name": "https://github.com/tinacms/tinacms/security/advisories/GHSA-g5qx-h5f3-mp2f",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/tinacms/tinacms/security/advisories/GHSA-g5qx-h5f3-mp2f"
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},
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{
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"name": "https://github.com/tinacms/tinacms/pull/7056",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/tinacms/tinacms/pull/7056"
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}
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],
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"affected": [
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{
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"vendor": "tinacms",
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"product": "tinacms",
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"versions": [
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{
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"version": "< 3.9.3",
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"status": "affected"
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}
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]
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},
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{
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"vendor": "tinacms",
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"product": "@tinacms/app",
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"versions": [
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{
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"version": "< 2.5.6",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-07-01T21:00:27.321Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Tina is a headless content management system. In versions prior to @tinacms/app 2.5.6 and tinacms 3.9.3, cross-origin postMessage handlers and a rich-text URL-sanitization bypass enable stored XSS and session takeover. The library registers window message listeners — the useTina overlay handler, the OAuth authentication popup handler, and the admin↔preview iframe GraphQL reducer — that act on event.data without verifying event.origin or event.source and post messages using non-specific target origins, while insufficient URL sanitization in rich-text content allows malicious URLs to persist and execute. A page the victim visits (or a window in an opener/iframe relationship with a Tina admin) can forge messages to drive the editor, inject preview content, or observe/forge the OAuth popup channel to take over an authenticated editing session. This issue has been fixed in versions @tinacms/app 2.5.6 and tinacms 3.9.3."
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}
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],
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"source": {
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"advisory": "GHSA-g5qx-h5f3-mp2f",
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"discovery": "UNKNOWN"
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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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"timestamp": "2026-07-02T12:43:41.136950Z",
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"id": "CVE-2026-55660",
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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": "total"
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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": "2026-07-02T12:43:47.881Z"
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}
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}
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]
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}
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} |