{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-111699", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-10-16T14:31:21.587Z", "datePublished": "2026-10-16T17:39:53.049Z", "dateUpdated": "2026-10-21T21:13:48.951Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-10-16T17:39:53.049Z" }, "datePublic": "2026-10-16T00:00:00.000Z", "title": "Niefy wx-api through 0.8.2 Authentication Bypass via Unverified openid Cookie", "descriptions": [ { "lang": "en", "value": "Niefy wx-api through 0.8.2 contains an authentication bypass vulnerability that allows unauthenticated attackers to impersonate WeChat fans by supplying a raw openid cookie to fan-facing controllers. Attackers knowing a victim's openid can call /wxUser/getUserInfo and /wxUserTags endpoints to read nickname, phone, unionid and tags, and add or remove fan tags." } ], "tags": [ "unsupported-when-assigned" ], "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "Missing Authentication for Critical Function", "cweId": "CWE-306", "type": "CWE" } ] } ], "affected": [ { "vendor": "niefy", "product": "wx-api", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThanOrEqual": "0.8.2", "status": "affected", "versionType": "semver" } ], "packageURL": "pkg:github/niefy/wx-api", "repo": "https://github.com/niefy/wx-api" } ], "metrics": [ { "format": "CVSS", "cvssV4_0": { "version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N", "attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 6.3, "baseSeverity": "MEDIUM" } }, { "format": "CVSS", "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseScore": 4.8, "baseSeverity": "MEDIUM" } } ], "references": [ { "url": "https://hackmd.io/@hieuPenguinnn/wx-api-cross-tenant-idor-and-unauth-fan-pii", "tags": [ "third-party-advisory" ] }, { "url": "https://github.com/niefy/wx-api/blob/0.8.2/src/main/java/com/github/niefy/modules/wx/controller/WxUserController.java#L31-L37", "tags": [ "technical-description" ] }, { "url": "https://github.com/niefy/wx-api/blob/0.8.2/src/main/java/com/github/niefy/modules/wx/controller/WxUserTagsController.java#L31-L45", "tags": [ "technical-description" ] }, { "url": "https://github.com/niefy/wx-api/blob/0.8.2/src/main/java/com/github/niefy/config/ShiroConfig.java#L43-L49", "tags": [ "technical-description" ] }, { "name": "VulnCheck Advisory: Niefy wx-api through 0.8.2 Authentication Bypass via Unverified openid Cookie", "tags": [ "third-party-advisory" ], "url": "https://www.vulncheck.com/advisories/niefy-wx-api-through-0.8.2-authentication-bypass-via-unverified-openid-cookie" } ], "credits": [ { "lang": "en", "value": "hieuPenguinnn", "type": "finder" } ], "x_generator": { "engine": "vulncheck-endgame" } }, "adp": [ { "references": [ { "url": "https://hackmd.io/@hieuPenguinnn/wx-api-cross-tenant-idor-and-unauth-fan-pii", "tags": [ "exploit" ] } ], "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-10-21T21:13:27.169987Z", "id": "CVE-2026-111699", "options": [ { "Exploitation": "poc" }, { "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": "2026-10-21T21:13:48.951Z" } } ] } }