{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-88055", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-09-09T21:22:45.434Z", "datePublished": "2026-09-10T17:53:16.150Z", "dateUpdated": "2026-09-10T18:15:36.256Z"}, "containers": {"cna": {"title": "AnythingLLM: Stored XSS Due to Unescaped Server-Side HTML Concatenation in MetaGenerator", "problemTypes": [{"descriptions": [{"cweId": "CWE-79", "lang": "en", "description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/Mintplex-Labs/anything-llm/security/advisories/GHSA-rh3m-xv7m-9jhf", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/Mintplex-Labs/anything-llm/security/advisories/GHSA-rh3m-xv7m-9jhf"}, {"name": "https://github.com/Mintplex-Labs/anything-llm/commit/6dff9d71ab585e87a3145a48abc63c2b60151149", "tags": ["x_refsource_MISC"], "url": "https://github.com/Mintplex-Labs/anything-llm/commit/6dff9d71ab585e87a3145a48abc63c2b60151149"}], "affected": [{"vendor": "Mintplex-Labs", "product": "anything-llm", "versions": [{"version": "<= 1.16.1", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-10T17:53:16.150Z"}, "descriptions": [{"lang": "en", "value": "AnythingLLM is an application that turns pieces of content into context that any LLM can use as references during chatting. In 1.16.1 and earlier, the manager role can store meta_page_title or meta_page_favicon through /api/admin/system-preferences, and MetaGenerator inserts those values into production homepage HTML without escaping attribute values or text content. The values pass unchanged through server/models/systemSettings.js and reach MetaGenerator.generate() in server/index.js. #assembleMeta() in server/utils/boot/MetaGenerator.js concatenates the stored values into HTML. When an administrator visits the homepage /, injected JavaScript can read the administrator JWT and use it to create API keys, access or modify workspace and chat data, delete users, and perform other administrator actions. server/endpoints/admin.js accepts the manager-controlled settings before server/models/systemSettings.js returns them unchanged. No fixed version is available as of this review."}], "source": {"advisory": "GHSA-rh3m-xv7m-9jhf", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/Mintplex-Labs/anything-llm/security/advisories/GHSA-rh3m-xv7m-9jhf", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-10T18:15:14.387905Z", "id": "CVE-2026-88055", "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": "2026-09-10T18:15:36.256Z"}}]}}

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