126 lines
5.2 KiB
JSON
126 lines
5.2 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-2026-53591",
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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": "2026-06-09T19:11:53.485Z",
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"datePublished": "2026-07-20T19:47:18.338Z",
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"dateUpdated": "2026-07-20T20:15:26.874Z"
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},
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"containers": {
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"cna": {
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"title": "FreeScout Vulnerable to Unauthenticated Conversation Thread Injection via HMAC Length Bypass in FetchEmails",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-287",
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"lang": "en",
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"description": "CWE-287: Improper Authentication",
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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": "LOW",
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"baseScore": 8.6,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "LOW",
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"integrityImpact": "HIGH",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L",
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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/freescout-help-desk/freescout/security/advisories/GHSA-8vm3-wwq4-ggfx",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-8vm3-wwq4-ggfx"
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}
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],
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"affected": [
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{
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"vendor": "freescout-help-desk",
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"product": "freescout",
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"versions": [
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{
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"version": "< 1.8.223",
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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": "2026-07-20T19:47:18.338Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.223, an unauthenticated attacker can inject messages into any existing support conversation by sending a single email to the helpdesk's public address with a crafted `In-Reply-To` header. No credentials, tokens, or prior access are required. The injected message is rendered in the agent UI as a legitimate customer reply, the conversation is automatically reopened, and the `last_reply_from` field is set to the attacker's identity. Version 1.8.223 contains a fix."
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}
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],
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"source": {
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"advisory": "GHSA-8vm3-wwq4-ggfx",
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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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"references": [
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{
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"url": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-8vm3-wwq4-ggfx",
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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": "2026-07-20T20:15:06.613729Z",
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"id": "CVE-2026-53591",
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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": "2026-07-20T20:15:26.874Z"
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}
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}
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]
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}
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} |