{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-5266", "assignerOrgId": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "state": "PUBLISHED", "assignerShortName": "wikimedia-foundation", "dateReserved": "2026-03-31T18:45:42.439Z", "datePublished": "2026-05-11T16:55:55.171Z", "dateUpdated": "2026-05-11T18:00:17.517Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc", "shortName": "wikimedia-foundation", "dateUpdated": "2026-05-11T16:55:55.171Z" }, "problemTypes": [ { "descriptions": [ { "lang": "en", "cweId": "CWE-200", "description": "CWE-200 Exposure of Sensitive Information to an Unauthorized Actor", "type": "CWE" } ] } ], "affected": [ { "vendor": "Wikimedia Foundation", "product": "Echo", "repo": "https://gerrit.wikimedia.org/g/mediawiki/extensions/Echo/+/refs/heads/master", "programFiles": [ "includes/Api/ApiEchoNotifications.php" ], "versions": [ { "status": "affected", "version": "*", "lessThan": "1.43.7, 1.44.4, 1.45.2", "versionType": "semver" } ], "defaultStatus": "unaffected" } ], "descriptions": [ { "lang": "en", "value": "Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Echo.\n\n This vulnerability is associated with program files includes/Api/ApiEchoNotifications.Php.\n\n\n\nThis issue affects Echo: from * before 1.43.7, 1.44.4, 1.45.2.", "supportingMedia": [ { "type": "text/html", "base64": false, "value": "Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Echo.
This vulnerability is associated with program files includes/Api/ApiEchoNotifications.Php.
This issue affects Echo: from * before 1.43.7, 1.44.4, 1.45.2.
" } ] } ], "references": [ { "url": "https://phabricator.wikimedia.org/T420154" } ], "metrics": [ { "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ], "cvssV4_0": { "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "LOW", "baseScore": 2.3, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N" } } ], "source": { "discovery": "UNKNOWN" }, "x_generator": { "engine": "Vulnogram 1.0.2" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-05-11T17:59:36.549787Z", "id": "CVE-2026-5266", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-11T18:00:17.517Z" } } ] } }