{"answers":{"affected":"2 open source packages ship an affected version, including avo. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-33209 in the wild and no public exploit code.","fix":"Upgrade avo to 3.30.3 or later.","what":"CVE-2026-33209 is a medium-severity cross-site scripting vulnerability in avo-hq avo, published on 20 Mar 2026. 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-2026-33209 and fix it if it is affected.\n\nWhat it is: CVE-2026-33209 is a medium-severity cross-site scripting vulnerability in avo-hq avo, published on 20 Mar 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-33209 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- avo (RubyGems): affected all versions; fixed in 3.30.3\n- avo (RubyGems): affected all versions; fixed in 3.30.3\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-2026-33209/ (Markdown: https://insights.sbomify.com/CVE-2026-33209/index.md)","id":"CVE-2026-33209","markdown":"https://insights.sbomify.com/CVE-2026-33209/index.md","name":"CVE-2026-33209","record":{"aliases":["GHSA-762r-27w2-q22j"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Ruby on Rails admin framework","requires_auth":"none","summary":"Attackers can inject arbitrary JavaScript via the return_to parameter in Avo admin panels, leading to script execution when users click navigation buttons.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"avo","vendor":"avohq"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Avo is a framework to create admin panels for Ruby on Rails apps. Prior to version 3.30.3, a reflected cross-site scripting (XSS) vulnerability exists in the return_to query parameter used in the avo interface. An attacker can craft a malicious URL that injects arbitrary JavaScript, which is executed when he clicks a dynamically generated navigation button. This issue has been patched in version 3.30.3.","ecosystems":["RubyGems"],"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":"Avo has a XSS vulnerability on `return_to` param","id":"CVE-2026-33209","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"RubyGems","product":null,"products":[],"type":"xss","year":"2026"},"n_packages":2,"n_references":4,"next":{"headline":"Ruby JSON has a format string injection vulnerability","id":"CVE-2026-33210"},"packages":[{"ecosystem":"RubyGems","fixed":["3.30.3"],"introduced":["0"],"last_affected":[],"package":"avo","purl":null,"source":"GHSA-762r-27w2-q22j"},{"ecosystem":"RubyGems","fixed":["3.30.3"],"introduced":["0"],"last_affected":[],"package":"avo","purl":"pkg:gem/avo","source":"GHSA-762r-27w2-q22j"}],"prev":{"headline":"Roxy-WI Vulnerable to Authenticated Remote Code Execution via OS Command Injection in find-in-config Endpoint","id":"CVE-2026-33208"},"products":["avo"],"published":"2026-03-20","related":[{"cvss_score":8.3,"headline":"Possible unsafe reflection / partial denial of service in avo","id":"CVE-2023-34102","kev_date_added":null,"published":"2023-06-05"},{"cvss_score":7.3,"headline":"Stored cross-site scripting (XSS) in `key_value` field in Avo","id":"CVE-2024-22191","kev_date_added":null,"published":"2024-01-16"},{"cvss_score":7.3,"headline":"Stored XSS (Cross Site Scripting) in html content based fields of avo","id":"CVE-2023-34103","kev_date_added":null,"published":"2023-06-05"},{"cvss_score":6.5,"headline":"Cross site scripting in Action messages on Avo","id":"CVE-2024-22411","kev_date_added":null,"published":"2024-01-16"}],"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)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-03-24","vendors":["avo-hq"]},"summary":"Attackers can inject arbitrary JavaScript via the return_to parameter in Avo admin panels, leading to script execution when users click navigation buttons.","url":"https://insights.sbomify.com/CVE-2026-33209/"}