{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-17011 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-17011 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-17011 is a low-severity cross-site scripting vulnerability in Unknown Nexter Blocks, published on 9 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-17011 and fix it if it is affected.\n\nWhat it is: CVE-2026-17011 is a low-severity cross-site scripting vulnerability in Unknown Nexter Blocks, published on 9 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-17011 in the wild and no public exploit code.\n\nAffected product: Unknown Nexter Blocks. 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-2026-17011/ (Markdown: https://insights.sbomify.com/CVE-2026-17011/index.md)","id":"CVE-2026-17011","markdown":"https://insights.sbomify.com/CVE-2026-17011/index.md","name":"CVE-2026-17011","record":{"aliases":["GHSA-gf2c-5g46-3crp"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["data_modify","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"WordPress plugin","requires_auth":"high_privilege","summary":"Contributors can inject arbitrary CSS via REST endpoints, enabling site-wide defacement and UI redressing in Nexter Blocks.","user_interaction":"not_required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"WPScan","cpe":[],"cvss":{"score":3.8,"severity":"low","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L","version":"3.1"},"cwes":[{"id":"CWE-345","name":"Insufficient Verification of Data Authenticity"}],"description":"The Nexter Blocks  WordPress plugin before 5.0.2 does not restrict who can save global CSS through one of its REST endpoints, allowing users with at least the Contributor role to store arbitrary CSS that is rendered site-wide on the front end, enabling defacement, content hiding, and UI redressing.","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":"Nexter Blocks \u003c 5.0.2 - Contributor+ Stored CSS Injection","id":"CVE-2026-17011","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Restore PayPal Standard for WooCommerce \u003c= 3.1.0 - Payment Bypass via Unvalidated receiver_email","id":"CVE-2026-17012"},"packages":[],"prev":{"headline":"Saitama Addon Pack \u003c= 1.0.8 - Contributor+ Stored XSS via Post Meta","id":"CVE-2026-17010"},"products":["Nexter Blocks"],"published":"2026-08-09","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":"2026-08-11","vendors":["Unknown"]},"summary":"Contributors can inject arbitrary CSS via REST endpoints, enabling site-wide defacement and UI redressing in Nexter Blocks.","url":"https://insights.sbomify.com/CVE-2026-17011/"}