{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-66596 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-66596 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-66596 is a high-severity cross-site scripting vulnerability in Stefano Lissa Newsletter, published on 19 Aug 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-2026-66596 and fix it if it is affected.\n\nWhat it is: CVE-2026-66596 is a high-severity cross-site scripting vulnerability in Stefano Lissa Newsletter, published on 19 Aug 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-2026-66596 in the wild and no public exploit code.\n\nAffected product: Stefano Lissa Newsletter. 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-2026-66596/ (Markdown: https://insights.sbomify.com/CVE-2026-66596/index.md)","id":"CVE-2026-66596","markdown":"https://insights.sbomify.com/CVE-2026-66596/index.md","name":"CVE-2026-66596","record":{"aliases":["GHSA-wmvx-23w9-2238"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"WordPress plugin","requires_auth":"none","summary":"Unauthenticated attackers can inject malicious scripts via the Newsletter plugin, potentially compromising user sessions or executing code.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Patchstack","cpe":[],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Unauthenticated Cross Site Scripting (XSS) in Newsletter \u003c= 9.3.3 versions.","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":"WordPress Newsletter plugin \u003c= 9.3.3 - Cross Site Scripting (XSS) vulnerability","id":"CVE-2026-66596","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"WordPress wpDataTables plugin \u003c= 6.5.1.4 - Cross Site Scripting (XSS) vulnerability","id":"CVE-2026-66597"},"packages":[],"prev":{"headline":"WordPress WP Data Access plugin \u003c= 5.5.80 - Broken Access Control vulnerability","id":"CVE-2026-66595"},"products":["Newsletter"],"published":"2026-08-19","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":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-19","vendors":["Stefano Lissa"]},"summary":"Unauthenticated attackers can inject malicious scripts via the Newsletter plugin, potentially compromising user sessions or executing code.","url":"https://insights.sbomify.com/CVE-2026-66596/"}