{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-103687 exists.","fix":"No fix has been published for CVE-2026-103687 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-103687 is a medium-severity cross-site scripting vulnerability in rhukster dom-sanitizer, published on 1 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-103687 and fix it if it is affected.\n\nWhat it is: CVE-2026-103687 is a medium-severity cross-site scripting vulnerability in rhukster dom-sanitizer, published on 1 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-103687 exists.\n\nAffected product: rhukster dom-sanitizer. 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-2026-103687/ (Markdown: https://insights.sbomify.com/CVE-2026-103687/index.md)","id":"CVE-2026-103687","markdown":"https://insights.sbomify.com/CVE-2026-103687/index.md","name":"CVE-2026-103687","record":{"aliases":["GHSA-cjfg-j8jp-5xvc","GHSA-xpxw-4f4p-f3h2"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"PHP DOM sanitizer library","requires_auth":"none","summary":"Attackers can bypass SVG sanitization via incomplete URL blacklisting to inject malicious scripts, requiring an upgrade to the dom-sanitizer library.","user_interaction":"not_required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"cwes":[{"id":"CWE-184","name":"Incomplete List of Disallowed Inputs"},{"id":"CWE-183","name":"Permissive List of Allowed Inputs"}],"description":"A vulnerability has been found in rhukster dom-sanitizer up to 1.0.15. The affected element is the function url of the file src/DOMSanitizer.php of the component SVG Sanitization. Such manipulation leads to incomplete blacklist. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.0.16 is sufficient to fix this issue. The name of the patch is 139c46c3d7c9bc81542b7b5a58d5cde5d0e0195a. Upgrading the affected component is recommended.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"rhukster dom-sanitizer SVG Sanitization DOMSanitizer.php url incomplete blacklist","id":"CVE-2026-103687","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"Checkout Files Upload for WooCommerce \u003c 2.4.0 - Unauthenticated Arbitrary File Upload","id":"CVE-2026-103688"},"packages":[],"prev":{"headline":"rhukster dom-sanitizer URL Validation DOMSanitizer.php isDangerousUrl cross site scripting","id":"CVE-2026-103686"},"products":["dom-sanitizer"],"published":"2026-10-01","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":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-01","vendors":["rhukster"]},"summary":"Attackers can bypass SVG sanitization via incomplete URL blacklisting to inject malicious scripts, requiring an upgrade to the dom-sanitizer library.","url":"https://insights.sbomify.com/CVE-2026-103687/"}