136 lines
5.8 KiB
JSON
136 lines
5.8 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-2026-40308",
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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": "2026-04-10T21:41:54.504Z",
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"datePublished": "2026-04-16T21:30:52.401Z",
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"dateUpdated": "2026-04-17T12:32:26.622Z"
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},
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"containers": {
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"cna": {
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"title": "My Calendar: Unauthenticated Information Disclosure (IDOR) via Multisite switch_to_blog",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-639",
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"lang": "en",
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"description": "CWE-639: Authorization Bypass Through User-Controlled Key",
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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": "NONE",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "HIGH",
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"vulnIntegrityImpact": "NONE",
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"vulnAvailabilityImpact": "HIGH",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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"baseScore": 8.8,
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"baseSeverity": "HIGH",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/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/joedolson/my-calendar/security/advisories/GHSA-2mvx-f5qm-v2ch",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/joedolson/my-calendar/security/advisories/GHSA-2mvx-f5qm-v2ch"
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},
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{
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"name": "https://github.com/joedolson/my-calendar/releases/tag/v3.7.7",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/joedolson/my-calendar/releases/tag/v3.7.7"
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}
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],
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"affected": [
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{
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"vendor": "joedolson",
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"product": "my-calendar",
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"versions": [
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{
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"version": "< 3.7.7",
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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": "2026-04-16T21:30:52.401Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "My Calendar is a WordPress plugin for managing calendar events. In versions 3.7.6 and below, the mc_ajax_mcjs_action AJAX endpoint, registered for unauthenticated users, passes user-supplied arguments through parse_str() without validation, allowing injection of arbitrary parameters including a site value. On WordPress Multisite installations, this enables an unauthenticated attacker to call switch_to_blog() with an arbitrary site ID and extract calendar events from any sub-site on the network, including private or hidden events. On standard Single Site installations, switch_to_blog() does not exist, causing an uncaught PHP fatal error and crashing the worker thread, creating an unauthenticated denial of service vector. This issue has been fixed in version 3.7.7."
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}
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],
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"source": {
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"advisory": "GHSA-2mvx-f5qm-v2ch",
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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/joedolson/my-calendar/security/advisories/GHSA-2mvx-f5qm-v2ch",
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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": "2026-04-17T12:32:21.737938Z",
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"id": "CVE-2026-40308",
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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": "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": "2026-04-17T12:32:26.622Z"
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}
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}
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]
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}
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} |