{"answers":{"affected":"3 open source packages ship an affected version, including markdown2. It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-11888 in the wild and no public exploit code.","fix":"Upgrade markdown2 to 2.3.9 or later.","what":"CVE-2020-11888 is a medium-severity cross-site scripting vulnerability in n/a, published on 20 Apr 2020. 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-2020-11888 and fix it if it is affected.\n\nWhat it is: CVE-2020-11888 is a medium-severity cross-site scripting vulnerability in n/a, published on 20 Apr 2020. 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-2020-11888 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- markdown2 (PyPI): affected all versions; fixed in 2.3.9\n- markdown2 (PyPI): affected all versions; fixed in 2.3.9\n- markdown2 (PyPI): affected all versions; fixed in 2.3.9\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-2020-11888/ (Markdown: https://insights.sbomify.com/CVE-2020-11888/index.md)","id":"CVE-2020-11888","markdown":"https://insights.sbomify.com/CVE-2020-11888/index.md","name":"CVE-2020-11888","record":{"aliases":["DEBIAN-CVE-2020-11888","GHSA-fv3h-8x5j-pvgq","PYSEC-2020-65","UBUNTU-CVE-2020-11888","openSUSE-SU-2020:0651-1","openSUSE-SU-2020:0656-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Python markdown library","requires_auth":"none","summary":"An attacker can execute arbitrary JavaScript in the context of users viewing markdown content due to improper element name handling in the python-markdown2 library.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"python-markdown2","vendor":"python-markdown2_project"}],"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":"python-markdown2 through 2.3.8 allows XSS because element names are mishandled unless a \\w+ match succeeds. For example, an attack might use elementname@ or elementname- with an onclick attribute.","ecosystems":["PyPI","SUSE:Package Hub 15 SP1","openSUSE:Leap 15.1"],"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":"XSS in python-markdown2","id":"CVE-2020-11888","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"xss","year":"2020"},"n_packages":5,"n_references":6,"next":{"headline":"An issue was discovered in Joomla!","id":"CVE-2020-11889"},"packages":[{"ecosystem":"PyPI","fixed":["2.3.9"],"introduced":["0"],"last_affected":[],"package":"markdown2","purl":null,"source":"GHSA-fv3h-8x5j-pvgq"},{"ecosystem":"PyPI","fixed":["2.3.9"],"introduced":["0"],"last_affected":[],"package":"markdown2","purl":"pkg:pypi/markdown2","source":"GHSA-fv3h-8x5j-pvgq"},{"ecosystem":"PyPI","fixed":["2.3.9"],"introduced":["0"],"last_affected":[],"package":"markdown2","purl":"pkg:pypi/markdown2","source":"PYSEC-2020-65"},{"ecosystem":"SUSE:Package Hub 15 SP1","fixed":["2.3.7-bp151.2.3.1"],"introduced":["0"],"last_affected":[],"package":"python-markdown2","purl":"pkg:rpm/suse/python-markdown2\u0026distro=SUSE%20Package%20Hub%2015%20SP1","source":"openSUSE-SU-2020:0656-1"},{"ecosystem":"openSUSE:Leap 15.1","fixed":["2.3.7-lp151.2.3.1"],"introduced":["0"],"last_affected":[],"package":"python-markdown2","purl":"pkg:rpm/opensuse/python-markdown2\u0026distro=openSUSE%20Leap%2015.1","source":"openSUSE-SU-2020:0651-1"}],"prev":{"headline":"XSS in svg2png (NPM package)","id":"CVE-2020-11887"},"products":["n/a"],"published":"2020-04-20","related":[{"cvss_score":6.1,"headline":"Cross-site scripting in markdown2 for python","id":"CVE-2009-3724","kev_date_added":null,"published":"2020-01-15"},{"cvss_score":6.1,"headline":"markdown2 is vulnerable to cross-site scripting","id":"CVE-2018-5773","kev_date_added":null,"published":"2018-01-18"}],"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":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"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":"2024-08-04","vendors":["n/a"]},"summary":"An attacker can execute arbitrary JavaScript in the context of users viewing markdown content due to improper element name handling in the python-markdown2 library.","url":"https://insights.sbomify.com/CVE-2020-11888/"}