{"answers":{"affected":"9 open source packages ship an affected version, including moodle/moodle and moodle. It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-20280 in the wild and no public exploit code.","fix":"Upgrade moodle/moodle to a fixed version for your release line: 3.10.2, 3.5.17, 3.8.8 or 3.9.5.","what":"CVE-2021-20280 is a medium-severity cross-site scripting vulnerability in Fedoraproject Fedora, published on 15 Mar 2021. 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-2021-20280 and fix it if it is affected.\n\nWhat it is: CVE-2021-20280 is a medium-severity cross-site scripting vulnerability in Fedoraproject Fedora, published on 15 Mar 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-20280 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- moodle/moodle (Packagist): affected from 3.10; fixed in 3.10.2\n- moodle/moodle (Packagist): affected from 3.10; fixed in 3.10.2\n- moodle/moodle (Packagist): affected from 3.5; fixed in 3.5.17\n- moodle/moodle (Packagist): affected from 3.5; fixed in 3.5.17\n- moodle/moodle (Packagist): affected from 3.8; fixed in 3.8.8\n- moodle/moodle (Packagist): affected from 3.8; fixed in 3.8.8\n- moodle/moodle (Packagist): affected from 3.9; fixed in 3.9.5\n- moodle/moodle (Packagist): affected from 3.9; fixed in 3.9.5\n- moodle (Bitnami): affected from 3.5.0; fixed in 3.5.17, 3.8.8, 3.9.5, 3.10.2\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-2021-20280/ (Markdown: https://insights.sbomify.com/CVE-2021-20280/index.md)","id":"CVE-2021-20280","markdown":"https://insights.sbomify.com/CVE-2021-20280/index.md","name":"CVE-2021-20280","record":{"aliases":["BIT-moodle-2021-20280","GHSA-x2jp-hh65-4xvf","UBUNTU-CVE-2021-20280"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Moodle LMS","requires_auth":"low_privilege","summary":"Attackers can inject malicious scripts via text feedback answers, leading to stored XSS and potential blind SSRF in Moodle.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"fedora","vendor":"fedoraproject"},{"product":"moodle","vendor":"moodle"}],"cvss":{"score":5.4,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Text-based feedback answers required additional sanitizing to prevent stored XSS and blind SSRF risks in moodle before 3.10.2, 3.9.5, 3.8.8, 3.5.17.","ecosystems":["Bitnami","Packagist"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Cross-site scripting (XSS) and Server side request forgery (SSRF) in moodle","id":"CVE-2021-20280","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"fedoraproject:fedora","products":["fedoraproject:fedora","moodle:moodle"],"type":"xss","year":"2021"},"n_packages":9,"n_references":6,"next":{"headline":"Moodle allowed some users without permission to view other users' full names","id":"CVE-2021-20281"},"packages":[{"ecosystem":"Bitnami","fixed":["3.5.17","3.8.8","3.9.5","3.10.2"],"introduced":["3.5.0","3.8.0","3.9.0","3.10.0"],"last_affected":[],"package":"moodle","purl":"pkg:bitnami/moodle","source":"BIT-moodle-2021-20280"},{"ecosystem":"Packagist","fixed":["3.10.2"],"introduced":["3.10"],"last_affected":[],"package":"moodle/moodle","purl":null,"source":"GHSA-x2jp-hh65-4xvf"},{"ecosystem":"Packagist","fixed":["3.10.2"],"introduced":["3.10"],"last_affected":[],"package":"moodle/moodle","purl":"pkg:composer/moodle/moodle","source":"GHSA-x2jp-hh65-4xvf"},{"ecosystem":"Packagist","fixed":["3.5.17"],"introduced":["3.5"],"last_affected":[],"package":"moodle/moodle","purl":null,"source":"GHSA-x2jp-hh65-4xvf"},{"ecosystem":"Packagist","fixed":["3.5.17"],"introduced":["3.5"],"last_affected":[],"package":"moodle/moodle","purl":"pkg:composer/moodle/moodle","source":"GHSA-x2jp-hh65-4xvf"},{"ecosystem":"Packagist","fixed":["3.8.8"],"introduced":["3.8"],"last_affected":[],"package":"moodle/moodle","purl":null,"source":"GHSA-x2jp-hh65-4xvf"},{"ecosystem":"Packagist","fixed":["3.8.8"],"introduced":["3.8"],"last_affected":[],"package":"moodle/moodle","purl":"pkg:composer/moodle/moodle","source":"GHSA-x2jp-hh65-4xvf"},{"ecosystem":"Packagist","fixed":["3.9.5"],"introduced":["3.9"],"last_affected":[],"package":"moodle/moodle","purl":null,"source":"GHSA-x2jp-hh65-4xvf"},{"ecosystem":"Packagist","fixed":["3.9.5"],"introduced":["3.9"],"last_affected":[],"package":"moodle/moodle","purl":"pkg:composer/moodle/moodle","source":"GHSA-x2jp-hh65-4xvf"}],"prev":{"headline":"Moodle contains Stored XSS via ID number user profile field","id":"CVE-2021-20279"},"products":["moodle"],"published":"2021-03-15","related":[{"cvss_score":9.8,"headline":"PHP-CGI OS Command Injection","id":"CVE-2024-4577","kev_date_added":"2024-06-12","published":"2024-06-09"},{"cvss_score":9.8,"headline":"Grafana Authentication Bypass","id":"CVE-2021-39226","kev_date_added":"2022-08-25","published":"2021-10-05"},{"cvss_score":9.8,"headline":"VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow","id":"CVE-2019-5544","kev_date_added":"2021-11-03","published":"2019-12-06"},{"cvss_score":9.6,"headline":"Google Chromium V8 Type Confusion","id":"CVE-2024-4947","kev_date_added":"2024-05-20","published":"2024-05-15"},{"cvss_score":9.6,"headline":"Google Chromium Visuals Use-After-Free","id":"CVE-2024-4671","kev_date_added":"2024-05-13","published":"2024-05-09"},{"cvss_score":9.6,"headline":"Google Chromium Mojo Insufficient Data Validation","id":"CVE-2022-3075","kev_date_added":"2022-09-08","published":"2022-09-26"},{"cvss_score":9.6,"headline":"Google Chromium Indexed DB API Use-After-Free","id":"CVE-2021-30633","kev_date_added":"2021-11-03","published":"2021-10-08"}],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["n/a"]},"summary":"Attackers can inject malicious scripts via text feedback answers, leading to stored XSS and potential blind SSRF in Moodle.","url":"https://insights.sbomify.com/CVE-2021-20280/"}