{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-38339 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-38339 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-38339 is a medium-severity cross-site scripting vulnerability in Simple Matted Thumbnails, published on 10 Sep 2021. 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-2021-38339 and fix it if it is affected.\n\nWhat it is: CVE-2021-38339 is a medium-severity cross-site scripting vulnerability in Simple Matted Thumbnails, published on 10 Sep 2021. 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-2021-38339 in the wild and no public exploit code.\n\nAffected product: Simple Matted Thumbnails. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2021-38339/ (Markdown: https://insights.sbomify.com/CVE-2021-38339/index.md)","id":"CVE-2021-38339","markdown":"https://insights.sbomify.com/CVE-2021-38339/index.md","name":"CVE-2021-38339","record":{"aliases":["GHSA-v85g-hrr5-4jw4"],"analysis":{"component_type":"cms_plugin","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"WordPress plugin","requires_auth":"none","summary":"Attackers can inject arbitrary web scripts via reflected PHP_SELF in the Simple Matted Thumbnails WordPress plugin, potentially compromising user sessions.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Wordfence","cpe":[{"product":"simple_matted_thumbnails","vendor":"devondev"}],"cvss":{"score":6.1,"severity":"medium","source":"cna","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":"The Simple Matted Thumbnails WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to a reflected $_SERVER[\"PHP_SELF\"] value in the ~/simple-matted-thumbnail.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 1.01.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Simple Matted Thumbnails \u003c= 1.01 Reflected Cross-Site Scripting","id":"CVE-2021-38339","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Wordpress Simple Shop \u003c= 1.2 Reflected Cross-Site Scripting","id":"CVE-2021-38340"},"packages":[],"prev":{"headline":"Border Loading Bar \u003c= 1.0.1 Reflected Cross-Site Scripting","id":"CVE-2021-38338"},"products":["Simple Matted Thumbnails"],"published":"2021-09-10","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2025-05-02","vendors":["Simple Matted Thumbnails"]},"summary":"Attackers can inject arbitrary web scripts via reflected PHP_SELF in the Simple Matted Thumbnails WordPress plugin, potentially compromising user sessions.","url":"https://insights.sbomify.com/CVE-2021-38339/"}