{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47950 exists.","fix":"No fix has been published for CVE-2021-47950 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-47950 is a medium-severity cross-site scripting vulnerability in Ampps Advanced Guestbook, published on 10 May 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-47950 and fix it if it is affected.\n\nWhat it is: CVE-2021-47950 is a medium-severity cross-site scripting vulnerability in Ampps Advanced Guestbook, published on 10 May 2026. Any signed-in user can exploit it over the network, 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-2021-47950 exists.\n\nAffected product: Ampps Advanced Guestbook. 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-2021-47950/ (Markdown: https://insights.sbomify.com/CVE-2021-47950/index.md)","id":"CVE-2021-47950","markdown":"https://insights.sbomify.com/CVE-2021-47950/index.md","name":"CVE-2021-47950","record":{"aliases":["GHSA-4x8q-cwhj-47mg"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Guestbook application","requires_auth":"low_privilege","summary":"Authenticated attackers can inject persistent scripts via the smilies administration interface, leading to code execution when administrators view the page.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":5.1,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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":"Advanced Guestbook 2.4.4 contains a persistent cross-site scripting vulnerability in the smilies administration interface that allows authenticated attackers to inject malicious scripts by manipulating the s_emotion parameter. Attackers can submit POST requests to admin.php with JavaScript code in the s_emotion field, which executes when administrators view the smilies tab.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"Advanced Guestbook 2.4.4 Persistent XSS via Smilies","id":"CVE-2021-47950","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2021"},"n_packages":0,"n_references":3,"next":{"headline":"WordPress Picture Gallery 1.4.2 Stored XSS via Edit Content URL","id":"CVE-2021-47951"},"packages":[],"prev":{"headline":"CyberPanel 2.1 Authenticated Remote Code Execution via Symlink Attack","id":"CVE-2021-47949"},"products":["Advanced Guestbook"],"published":"2026-05-10","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-15","vendors":["Ampps"]},"summary":"Authenticated attackers can inject persistent scripts via the smilies administration interface, leading to code execution when administrators view the page.","url":"https://insights.sbomify.com/CVE-2021-47950/"}