{"answers":{"affected":"2 open source packages ship an affected version, including org.keycloak:keycloak-core. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-20323 exists.","fix":"Upgrade org.keycloak:keycloak-core to 17.0.0 or later.","what":"CVE-2021-20323 is a medium-severity cross-site scripting vulnerability in Redhat Keycloak, published on 25 Mar 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-20323 and fix it if it is affected.\n\nWhat it is: CVE-2021-20323 is a medium-severity cross-site scripting vulnerability in Redhat Keycloak, published on 25 Mar 2022. An attacker can exploit it over the internet without logging in, 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-2021-20323 exists.\n\nAffected packages and fixed versions:\n- org.keycloak:keycloak-core (Maven): affected from 15.0.0; fixed in 17.0.0\n- org.keycloak:keycloak-core (Maven): affected from 15.0.0; fixed in 17.0.0\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-2021-20323/ (Markdown: https://insights.sbomify.com/CVE-2021-20323/index.md)","id":"CVE-2021-20323","markdown":"https://insights.sbomify.com/CVE-2021-20323/index.md","name":"CVE-2021-20323","record":{"aliases":["GHSA-xpgc-j48j-jwv9"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Keycloak identity server","requires_auth":"none","summary":"Attackers can execute arbitrary scripts in victim browsers via reflected XSS in Keycloak, potentially compromising user sessions.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"keycloak","vendor":"redhat"}],"cvss":{"score":6.1,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/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":"A POST based reflected Cross Site Scripting vulnerability on has been identified in Keycloak.","ecosystems":["Maven"],"exploits":{"exploitdb":0,"first_seen":"2022-12-07","github_poc":3,"max_poc_stars":12,"metasploit":0,"nuclei":1,"refs":[{"date":"2022-12-07T21:15:23Z","kind":"github_poc","ref":"https://github.com/ndmalc/CVE-2021-20323","stars":12,"title":null},{"date":"2024-01-11T16:02:07Z","kind":"github_poc","ref":"https://github.com/Cappricio-Securities/CVE-2021-20323","stars":3,"title":"A POST based reflected Cross Site Scripting vulnerability on has been identified in Keycloak."},{"date":"2024-07-07T23:02:00Z","kind":"github_poc","ref":"https://github.com/cscpwn0sec/CVE-2021-20323","stars":2,"title":"Exploitation Scanner Cross Site Scripting vulnerability in Keycloak."},{"date":null,"kind":"nuclei","ref":"http/cves/2021/CVE-2021-20323.yaml","stars":null,"title":"Keycloak 10.0.0 - 18.0.0 - Cross-Site Scripting"}],"tier":"weaponised"},"has_fix":true,"headline":"Cross-site Scripting in Keycloak","id":"CVE-2021-20323","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":"redhat:keycloak","products":["redhat:keycloak"],"type":"xss","year":"2021"},"n_packages":2,"n_references":1,"next":{"headline":"DO NOT USE THIS CANDIDATE NUMBER.","id":"CVE-2021-20324"},"packages":[{"ecosystem":"Maven","fixed":["17.0.0"],"introduced":["15.0.0"],"last_affected":[],"package":"org.keycloak:keycloak-core","purl":null,"source":"GHSA-xpgc-j48j-jwv9"},{"ecosystem":"Maven","fixed":["17.0.0"],"introduced":["15.0.0"],"last_affected":[],"package":"org.keycloak:keycloak-core","purl":"pkg:maven/org.keycloak/keycloak-core","source":"GHSA-xpgc-j48j-jwv9"}],"prev":{"headline":"Information disclosure in kernel","id":"CVE-2021-20322"},"products":["keycloak-services"],"published":"2022-03-25","related":[{"cvss_score":10,"headline":"Keycloak vulnerable to cross-site scripting when validating URI-schemes on SAML and OIDC","id":"CVE-2022-4361","kev_date_added":null,"published":"2023-07-07"},{"cvss_score":9.8,"headline":"Keycloak vulnerable to privilege escalation on Token Exchange feature","id":"CVE-2022-1245","kev_date_added":null,"published":"2022-07-07"},{"cvss_score":9.6,"headline":"keycloak Self Stored Cross-site Scripting vulnerability","id":"CVE-2021-20195","kev_date_added":null,"published":"2021-05-28"},{"cvss_score":9.3,"headline":"Keycloak Authentication Error","id":"CVE-2019-14910","kev_date_added":null,"published":"2019-12-05"},{"cvss_score":9.3,"headline":"Keycloak Authentication Error","id":"CVE-2019-14909","kev_date_added":null,"published":"2019-12-04"},{"cvss_score":9.1,"headline":"Keycloak vulnerable to path traversal via double URL encoding","id":"CVE-2022-3782","kev_date_added":null,"published":"2023-01-11"},{"cvss_score":9.1,"headline":"keycloak vulnerable to unauthorized login via mail server setup","id":"CVE-2019-14837","kev_date_added":null,"published":"2020-01-07"}],"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)"},{"class":"attribution","licence":"MIT","name":"Nuclei templates"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["n/a"]},"summary":"Attackers can execute arbitrary scripts in victim browsers via reflected XSS in Keycloak, potentially compromising user sessions.","url":"https://insights.sbomify.com/CVE-2021-20323/"}