{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-13042 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-13042 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-13042 is a high-severity cross-site scripting vulnerability in yo35 RPB Chessboard, published on 16 Jul 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-2026-13042 and fix it if it is affected.\n\nWhat it is: CVE-2026-13042 is a high-severity cross-site scripting vulnerability in yo35 RPB Chessboard, published on 16 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-13042 in the wild and no public exploit code.\n\nAffected product: yo35 RPB Chessboard. 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-2026-13042/ (Markdown: https://insights.sbomify.com/CVE-2026-13042/index.md)","id":"CVE-2026-13042","markdown":"https://insights.sbomify.com/CVE-2026-13042/index.md","name":"CVE-2026-13042","record":{"aliases":["GHSA-23qv-c3w3-qc96"],"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 arbitrary scripts via comment content in the RPB Chessboard plugin, leading to potential account takeover.","user_interaction":"not_required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Wordfence","cpe":[],"cvss":{"score":7.2,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/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 RPB Chessboard plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Comment Content in all versions up to, and including, 8.1.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. WordPress's save-time kses sanitization does not mitigate this issue because the crafted payload uses only kses-allowed tags and attributes (such as an \u0026lt;a\u0026gt; element with title and href), and the dangerous attribute-breaking HTML is synthesized entirely at render time by the plugin's own comment_text filter.","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":"RPB Chessboard \u003c= 8.1.2 - Unauthenticated Stored Cross-Site Scripting via Comment Content","id":"CVE-2026-13042","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"Missing authorization in Endpoint Security","id":"CVE-2026-13043"},"packages":[],"prev":{"headline":"NEX-Forms \u003c= 9.2.2 - Unauthenticated Stored Cross-Site Scripting via 'real_val__' Parameter","id":"CVE-2026-13040"},"products":["RPB Chessboard"],"published":"2026-07-16","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":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-18","vendors":["yo35"]},"summary":"Unauthenticated attackers can inject arbitrary scripts via comment content in the RPB Chessboard plugin, leading to potential account takeover.","url":"https://insights.sbomify.com/CVE-2026-13042/"}