{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-4813 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-4813 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-4813 is a critical code injection vulnerability in Lutece Core, published on 1 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-4813 and fix it if it is affected.\n\nWhat it is: CVE-2026-4813 is a critical code injection vulnerability in Lutece Core, published on 1 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-4813 in the wild and no public exploit code.\n\nAffected product: Lutece Core. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-4813/ (Markdown: https://insights.sbomify.com/CVE-2026-4813/index.md)","id":"CVE-2026-4813","markdown":"https://insights.sbomify.com/CVE-2026-4813/index.md","name":"CVE-2026-4813","record":{"aliases":["GHSA-wvvp-v69c-rj86"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Lutece Core","requires_auth":"high_privilege","summary":"Authenticated administrators can execute arbitrary code on the server by uploading malicious XSL stylesheets due to insecure XML processing configuration.","user_interaction":"not_required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"INCIBE","cpe":[],"cvss":{"score":9.4,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","version":"4.0"},"cwes":[{"id":"CWE-94","name":"Improper Control of Generation of Code"}],"description":"A vulnerability in the Lutece Core XSL export management module up to version 7.1.7, which allows authenticated administrators to execute code remotely. The XML/XSLT processing configuration does not enable secure processing mode (FEATURE_SECURE_PROCESSING), allowing Java extension functions to be executed from malicious XSL stylesheets. An attacker with administrator privileges can upload a manipulated XSL transformation file and trigger its execution during user export operations, resulting in the execution of arbitrary code on the server.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-09-03","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-09-03T17:26:45Z","kind":"github_poc","ref":"https://github.com/Trachinus/CVE-2026-4813","stars":0,"title":"PoC for CVE-2026-4813"}],"tier":"poc_unverified"},"has_fix":null,"headline":"Code injection in the Lutece Core","id":"CVE-2026-4813","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"code_injection","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"SQL Injection vulnerability in Support Board","id":"CVE-2026-4815"},"packages":[],"prev":{"headline":"Missing authorization in Advanced Custom Fields (ACF®)","id":"CVE-2026-4812"},"products":["Lutece Core"],"published":"2026-09-01","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-09-01","vendors":["Lutece"]},"summary":"Authenticated administrators can execute arbitrary code on the server by uploading malicious XSL stylesheets due to insecure XML processing configuration.","url":"https://insights.sbomify.com/CVE-2026-4813/"}