165 lines
7.1 KiB
JSON
165 lines
7.1 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-2026-91123",
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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": "2026-09-14T19:36:48.843Z",
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"datePublished": "2026-09-24T16:54:59.357Z",
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"dateUpdated": "2026-09-24T17:11:34.752Z"
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},
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"containers": {
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"cna": {
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"title": "Discourse: Reject literal backslash path separators in iframe src traversal guard",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-22",
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"lang": "en",
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"description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')",
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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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"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": 7.2,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "LOW",
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"integrityImpact": "LOW",
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"privilegesRequired": "NONE",
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"scope": "CHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
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"version": "3.1"
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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/discourse/discourse/security/advisories/GHSA-6pwj-wgg8-4rjc",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/discourse/discourse/security/advisories/GHSA-6pwj-wgg8-4rjc"
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},
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{
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"name": "https://github.com/discourse/discourse/pull/42882",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/discourse/discourse/pull/42882"
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},
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{
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"name": "https://github.com/discourse/discourse/commit/042d7b159beda4f74d23e245e8b2e396d9ff8318",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/discourse/discourse/commit/042d7b159beda4f74d23e245e8b2e396d9ff8318"
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},
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{
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"name": "https://github.com/discourse/discourse/commit/097ce5600a2d74d9c68e57974597ab2684bd2a24",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/discourse/discourse/commit/097ce5600a2d74d9c68e57974597ab2684bd2a24"
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},
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{
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"name": "https://github.com/discourse/discourse/commit/0b5a27e689925edce9ba9b14110022435d2b94be",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/discourse/discourse/commit/0b5a27e689925edce9ba9b14110022435d2b94be"
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},
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{
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"name": "https://github.com/discourse/discourse/commit/142f5155ad8e56ddb8012c4e70c69a03dedc0579",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/discourse/discourse/commit/142f5155ad8e56ddb8012c4e70c69a03dedc0579"
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}
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],
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"affected": [
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{
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"vendor": "discourse",
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"product": "discourse",
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"versions": [
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{
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"version": "< 2026.8.0",
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"status": "affected"
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},
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{
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"version": ">= 2026.7.0-latest, < 2026.7.2",
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"status": "affected"
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},
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{
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"version": ">= 2026.6.0-latest, < 2026.6.3",
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"status": "affected"
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},
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{
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"version": ">= 2026.1.0-latest, < 2026.1.8",
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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": "2026-09-24T16:54:59.357Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Discourse is an open-source discussion platform. Prior to 2026.1.8, 2026.6.3, 2026.7.2, and 2026.8.0, the iframe src traversal guard did not treat literal backslashes as path separators after decoded dot segments. A crafted source could therefore pass an allowed_iframes subpath check while browser URL normalization moved the iframe outside the intended allowed path. The resulting iframe could load content from a location that the administrator did not allow. This issue is fixed in versions 2026.1.8, 2026.6.3, 2026.7.2, and 2026.8.0."
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}
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],
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"source": {
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"advisory": "GHSA-6pwj-wgg8-4rjc",
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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": "2026-09-24T17:11:25.606443Z",
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"id": "CVE-2026-91123",
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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": "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": "2026-09-24T17:11:34.752Z"
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}
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}
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]
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}
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} |