{"answers":{"affected":"2 open source packages ship an affected version, including wger.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-86257 exists.","fix":"Upgrade wger to 2.6 or later.","what":"CVE-2026-86257 is a medium-severity vulnerability in wger-project wger, published on 6 Sep 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-2026-86257 and fix it if it is affected.\n\nWhat it is: CVE-2026-86257 is a medium-severity vulnerability in wger-project wger, published on 6 Sep 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-2026-86257 exists.\n\nAffected packages and fixed versions:\n- wger (PyPI): affected all versions; fixed in 2.6\n- wger (PyPI): affected all versions; fixed in 2.6\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-2026-86257/ (Markdown: https://insights.sbomify.com/CVE-2026-86257/index.md)","id":"CVE-2026-86257","markdown":"https://insights.sbomify.com/CVE-2026-86257/index.md","name":"CVE-2026-86257","record":{"aliases":["GHSA-pmr9-wpc3-f495","GHSA-xq9m-hmp9-fw87"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Fitness management web app","requires_auth":"low_privilege","summary":"Attackers can inject malicious spreadsheet formulas into exported gym member data, leading to code execution or data exfiltration when admins open the file.","user_interaction":"required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":4.8,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","version":"4.0"},"cwes":[{"id":"CWE-1236","name":"Improper Neutralization of Formula Elements in a CSV File"}],"description":"wger before 2.6 fails to sanitize first_name and last_name fields in the gym member TSV export endpoint, allowing any gym member to inject spreadsheet formulas. Attackers can inject formulas like =HYPERLINK to exfiltrate admin data or execute code when admins open the exported file in Excel or LibreOffice Calc.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"wger before 2.6 CSV Formula Injection via member export","id":"CVE-2026-86257","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"other","year":"2026"},"n_packages":2,"n_references":2,"next":{"headline":"nbviewer through 1.0.1 Path Traversal via LocalFileHandler","id":"CVE-2026-86258"},"packages":[{"ecosystem":"PyPI","fixed":["2.6"],"introduced":["0"],"last_affected":[],"package":"wger","purl":null,"source":"GHSA-xq9m-hmp9-fw87"},{"ecosystem":"PyPI","fixed":["2.6"],"introduced":["0"],"last_affected":[],"package":"wger","purl":"pkg:pypi/wger","source":"GHSA-xq9m-hmp9-fw87"}],"prev":{"headline":"wger before 2.6 Open Redirect via trainer-login next parameter","id":"CVE-2026-86256"},"products":["wger"],"published":"2026-09-06","related":[],"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":"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":"2026-09-08","vendors":["wger-project"]},"summary":"Attackers can inject malicious spreadsheet formulas into exported gym member data, leading to code execution or data exfiltration when admins open the file.","url":"https://insights.sbomify.com/CVE-2026-86257/"}