{"answers":{"affected":"2 open source packages ship an affected version, including modx/revolution. It affects 1 product.","exploited":"There is no known exploitation of CVE-2018-20756 in the wild and no public exploit code.","fix":"Upgrade modx/revolution to 2.7.1-pl or later.","what":"CVE-2018-20756 is a medium-severity cross-site scripting vulnerability in n/a, published on 6 Feb 2019. 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-2018-20756 and fix it if it is affected.\n\nWhat it is: CVE-2018-20756 is a medium-severity cross-site scripting vulnerability in n/a, published on 6 Feb 2019. 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-2018-20756 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- modx/revolution (Packagist): affected all versions; fixed in 2.7.1-pl\n- modx/revolution (Packagist): affected all versions; fixed in 2.7.1-pl\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-2018-20756/ (Markdown: https://insights.sbomify.com/CVE-2018-20756/index.md)","id":"CVE-2018-20756","markdown":"https://insights.sbomify.com/CVE-2018-20756/index.md","name":"CVE-2018-20756","record":{"aliases":["GHSA-fpxg-5x79-43rm"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"MODX Revolution CMS","requires_auth":"none","summary":"Cross-site scripting in MODX Revolution allows attackers to inject scripts via document resources, potentially leading to session hijacking or code execution.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"modx_revolution","vendor":"modx"}],"cvss":{"score":6.1,"severity":"medium","source":"nvd","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"MODX Revolution through v2.7.0-pl allows XSS via a document resource (such as pagetitle), which is mishandled during an Update action, a Quick Edit action, or the viewing of manager logs.","ecosystems":["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":"MODX Revolution allows XSS via document resources","id":"CVE-2018-20756","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Packagist","product":null,"products":[],"type":"xss","year":"2018"},"n_packages":2,"n_references":1,"next":{"headline":"MODX Revolution allows XSS through extended user fields","id":"CVE-2018-20757"},"packages":[{"ecosystem":"Packagist","fixed":["2.7.1-pl"],"introduced":["0"],"last_affected":[],"package":"modx/revolution","purl":null,"source":"GHSA-fpxg-5x79-43rm"},{"ecosystem":"Packagist","fixed":["2.7.1-pl"],"introduced":["0"],"last_affected":[],"package":"modx/revolution","purl":"pkg:composer/modx/revolution","source":"GHSA-fpxg-5x79-43rm"}],"prev":{"headline":"MODX Revolution vulnerable to XSS attack through its User Photo field","id":"CVE-2018-20755"},"products":["n/a"],"published":"2019-02-06","related":[{"cvss_score":9.8,"headline":"Code injection in n/a","id":"CVE-2017-7321","kev_date_added":null,"published":"2017-03-30"},{"cvss_score":9.8,"headline":"Code injection in n/a","id":"CVE-2017-7324","kev_date_added":null,"published":"2017-03-30"},{"cvss_score":9.1,"headline":"XML External Entity vulnerability in MODX CMS","id":"CVE-2020-25911","kev_date_added":null,"published":"2021-10-31"},{"cvss_score":8.8,"headline":"MODX Revolution allows overwriting .htaccess","id":"CVE-2017-9069","kev_date_added":null,"published":"2017-05-18"},{"cvss_score":8.1,"headline":"Weak cryptography in n/a","id":"CVE-2017-7322","kev_date_added":null,"published":"2017-03-30"},{"cvss_score":8.1,"headline":"Server-side request forgery in n/a","id":"CVE-2017-7323","kev_date_added":null,"published":"2017-03-30"},{"cvss_score":7.5,"headline":"File upload in Gallery","id":"CVE-2019-1010123","kev_date_added":null,"published":"2019-07-23"}],"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-05","vendors":["n/a"]},"summary":"Cross-site scripting in MODX Revolution allows attackers to inject scripts via document resources, potentially leading to session hijacking or code execution.","url":"https://insights.sbomify.com/CVE-2018-20756/"}