{"answers":{"affected":"2 open source packages ship an affected version, including oneuptime. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-32308 exists.","fix":"Upgrade oneuptime to 10.0.23 or later.","what":"CVE-2026-32308 is a high-severity cross-site scripting vulnerability in oneuptime, published on 12 Mar 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-32308 and fix it if it is affected.\n\nWhat it is: CVE-2026-32308 is a high-severity cross-site scripting vulnerability in oneuptime, published on 12 Mar 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-32308 exists.\n\nAffected packages and fixed versions:\n- oneuptime (npm): affected all versions; fixed in 10.0.23\n- oneuptime (npm): affected all versions; fixed in 10.0.23\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-32308/ (Markdown: https://insights.sbomify.com/CVE-2026-32308/index.md)","id":"CVE-2026-32308","markdown":"https://insights.sbomify.com/CVE-2026-32308/index.md","name":"CVE-2026-32308","record":{"aliases":["GHSA-wvh5-6vjm-23qh"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"OneUptime monitoring platform","requires_auth":"low_privilege","summary":"Attackers can execute arbitrary JavaScript via stored XSS in Mermaid diagrams rendered in markdown fields, potentially compromising user accounts.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"oneuptime","vendor":"hackerbay"}],"cvss":{"score":7.6,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"OneUptime is a solution for monitoring and managing online services. Prior to 10.0.23, the Markdown viewer component renders Mermaid diagrams with securityLevel: \"loose\" and injects the SVG output via innerHTML. This configuration explicitly allows interactive event bindings in Mermaid diagrams, enabling XSS through Mermaid's click directive which can execute arbitrary JavaScript. Any field that renders markdown (incident descriptions, status page announcements, monitor notes) is vulnerable. This vulnerability is fixed in 10.0.23.","ecosystems":["npm"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"OneUptime: Stored XSS via Mermaid Diagram Rendering (securityLevel: \"loose\")","id":"CVE-2026-32308","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"xss","year":"2026"},"n_packages":2,"n_references":1,"next":{"headline":"Cryptomator: Hub unlocking accepts plaintext HTTP and unvalidated endpoint schemes","id":"CVE-2026-32309"},"packages":[{"ecosystem":"npm","fixed":["10.0.23"],"introduced":["0"],"last_affected":[],"package":"oneuptime","purl":null,"source":"GHSA-wvh5-6vjm-23qh"},{"ecosystem":"npm","fixed":["10.0.23"],"introduced":["0"],"last_affected":[],"package":"oneuptime","purl":"pkg:npm/oneuptime","source":"GHSA-wvh5-6vjm-23qh"}],"prev":{"headline":"OneUptime ClickHouse SQL Injection via Aggregate Query Parameters","id":"CVE-2026-32306"},"products":["oneuptime"],"published":"2026-03-12","related":[{"cvss_score":10,"headline":"Code injection in oneuptime","id":"CVE-2026-33396","kev_date_added":null,"published":"2026-03-26"},{"cvss_score":10,"headline":"OneUptime ClickHouse SQL Injection via Aggregate Query Parameters","id":"CVE-2026-32306","kev_date_added":null,"published":"2026-03-12"},{"cvss_score":10,"headline":"OneUptime has authorization bypass via client‑controlled is-multi-tenant-query header","id":"CVE-2026-30956","kev_date_added":null,"published":"2026-03-10"},{"cvss_score":10,"headline":"OneUptime Synthetic Monitor RCE via exposed Playwright browser object","id":"CVE-2026-30957","kev_date_added":null,"published":"2026-03-10"},{"cvss_score":10,"headline":"OneUptime Affected by Unsandboxed Code Execution in Probe Allows Any Project Member to Achieve RCE","id":"CVE-2026-30887","kev_date_added":null,"published":"2026-03-09"},{"cvss_score":10,"headline":"OneUptime Synthetic Monitor RCE via exposed Playwright browser object","id":"CVE-2026-30921","kev_date_added":null,"published":"2026-03-09"},{"cvss_score":10,"headline":"OneUptime: OS Command Injection in Probe NetworkPathMonitor via unsanitized destination in traceroute exec()","id":"CVE-2026-27728","kev_date_added":null,"published":"2026-02-25"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-03-14","vendors":["OneUptime"]},"summary":"Attackers can execute arbitrary JavaScript via stored XSS in Mermaid diagrams rendered in markdown fields, potentially compromising user accounts.","url":"https://insights.sbomify.com/CVE-2026-32308/"}