{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2018-1999019 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2018-1999019 yet. Limit exposure of the affected software until one is available.","what":"CVE-2018-1999019 is a critical unsafe deserialization vulnerability in Chamilo Chamilo Lms, published on 23 Jul 2018. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-1999019 and fix it if it is affected.\n\nWhat it is: CVE-2018-1999019 is a critical unsafe deserialization vulnerability in Chamilo Chamilo Lms, published on 23 Jul 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2018-1999019 in the wild and no public exploit code.\n\nAffected product: Chamilo Chamilo Lms. 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-2018-1999019/ (Markdown: https://insights.sbomify.com/CVE-2018-1999019/index.md)","id":"CVE-2018-1999019","markdown":"https://insights.sbomify.com/CVE-2018-1999019/index.md","name":"CVE-2018-1999019","record":{"aliases":["GHSA-g5qj-4p4v-2jhc"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Chamilo LMS","requires_auth":"none","summary":"Unauthenticated attackers can achieve remote code execution via unsafe deserialization in the Chamilo LMS API endpoint.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"chamilo_lms","vendor":"chamilo"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-94","name":"Improper Control of Generation of Code"}],"description":"Chamilo LMS version 11.x contains an Unserialization vulnerability in the \"hash\" GET parameter for the api endpoint located at /webservices/api/v2.php that can result in Unauthenticated remote code execution. This attack appear to be exploitable via a simple GET request to the api endpoint. This vulnerability appears to have been fixed in After commit 0de84700648f098c1fbf6b807dee28ec640efe62.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Deserialization in n/a","id":"CVE-2018-1999019","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"chamilo:chamilo_lms","products":["chamilo:chamilo_lms"],"type":"deserialization","year":"2018"},"n_packages":0,"n_references":2,"next":{"headline":"Path traversal in n/a","id":"CVE-2018-1999020"},"packages":[],"prev":{"headline":"Command injection in n/a","id":"CVE-2018-1999018"},"products":["n/a"],"published":"2018-07-23","related":[{"cvss_score":9.8,"headline":"Chamilo: Evaluation of untrusted user input leads to Remote Code Execution","id":"CVE-2025-50187","kev_date_added":null,"published":"2026-03-02"},{"cvss_score":9.8,"headline":"File upload in n/a","id":"CVE-2023-34944","kev_date_added":null,"published":"2023-06-13"},{"cvss_score":9.8,"headline":"SQL injection in n/a","id":"CVE-2022-27423","kev_date_added":null,"published":"2022-04-15"},{"cvss_score":9.8,"headline":"SQL injection in n/a","id":"CVE-2021-35414","kev_date_added":null,"published":"2021-12-03"},{"cvss_score":9.8,"headline":"File upload in n/a","id":"CVE-2019-13082","kev_date_added":null,"published":"2019-06-30"},{"cvss_score":9.4,"headline":"Weak Password Recovery Mechanism for Forgotten Password in chamilo/chamilo-lms","id":"CVE-2026-33707","kev_date_added":null,"published":"2026-04-10"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-09-16","vendors":["n/a"]},"summary":"Unauthenticated attackers can achieve remote code execution via unsafe deserialization in the Chamilo LMS API endpoint.","url":"https://insights.sbomify.com/CVE-2018-1999019/"}