{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-5621 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-5621 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-5621 is a medium-severity cross-site scripting vulnerability in nik00726 Thumbnail Slider With Lightbox, published on 18 Oct 2023. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-5621 and fix it if it is affected.\n\nWhat it is: CVE-2023-5621 is a medium-severity cross-site scripting vulnerability in nik00726 Thumbnail Slider With Lightbox, published on 18 Oct 2023. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-5621 in the wild and no public exploit code.\n\nAffected product: nik00726 Thumbnail Slider With Lightbox. 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-2023-5621/ (Markdown: https://insights.sbomify.com/CVE-2023-5621/index.md)","id":"CVE-2023-5621","markdown":"https://insights.sbomify.com/CVE-2023-5621/index.md","name":"CVE-2023-5621","record":{"aliases":["GHSA-7c84-qx75-c25g"],"analysis":{"component_type":"cms_plugin","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":true,"product_category":"WordPress plugin","requires_auth":"high_privilege","summary":"Administrators can inject arbitrary scripts via image titles in this WordPress plugin, affecting multi-site or restricted HTML configurations.","user_interaction":"not_required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Wordfence","cpe":[{"product":"thumbnail_slider_with_lightbox","vendor":"i13websolution"}],"cvss":{"score":4.4,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/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 Thumbnail Slider With Lightbox plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Image Title field in versions up to, and including, 1.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.","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":"Thumbnail Slider With Lightbox \u003c= 1.0 - Authenticated (Administrator+) Stored Cross-Site Scripting via Image Title","id":"CVE-2023-5621","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2023"},"n_packages":0,"n_references":3,"next":{"headline":"Privilege Escalation","id":"CVE-2023-5622"},"packages":[],"prev":{"headline":"Webpushr \u003c 4.35.0 - Unauthenticated Stored XSS","id":"CVE-2023-5620"},"products":["Thumbnail Slider With Lightbox"],"published":"2023-10-18","related":[{"cvss_score":9.6,"headline":"Cross-site request forgery in Thumbnail Slider With Lightbox","id":"CVE-2023-5820","kev_date_added":null,"published":"2023-10-27"},{"cvss_score":4.9,"headline":"Thumbnail Slider With Lightbox \u003c= 1.0.4 - Authenticated (Admin+) SQL Injection","id":"CVE-2015-10146","kev_date_added":null,"published":"2025-10-29"},{"cvss_score":4.3,"headline":"Thumbnail Slider With Lightbox \u003c= 1.0 - Cross-Site Request Forgery","id":"CVE-2023-5531","kev_date_added":null,"published":"2023-10-12"}],"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":"2026-04-08","vendors":["nik00726"]},"summary":"Administrators can inject arbitrary scripts via image titles in this WordPress plugin, affecting multi-site or restricted HTML configurations.","url":"https://insights.sbomify.com/CVE-2023-5621/"}