{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-5820 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-5820 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-5820 is a medium-severity cross-site scripting vulnerability in sproutient Zypento Blocks, published on 22 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-5820 and fix it if it is affected.\n\nWhat it is: CVE-2026-5820 is a medium-severity cross-site scripting vulnerability in sproutient Zypento Blocks, published on 22 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-5820 in the wild and no public exploit code.\n\nAffected product: sproutient Zypento 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-2026-5820/ (Markdown: https://insights.sbomify.com/CVE-2026-5820/index.md)","id":"CVE-2026-5820","markdown":"https://insights.sbomify.com/CVE-2026-5820/index.md","name":"CVE-2026-5820","record":{"aliases":["GHSA-qf7j-x97j-qhrf"],"analysis":{"component_type":"cms_plugin","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"WordPress plugin","requires_auth":"low_privilege","summary":"Authenticated attackers can inject arbitrary scripts via the Table of Contents block, executing them for other users.","user_interaction":"not_required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Wordfence","cpe":[],"cvss":{"score":6.4,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/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 Zypento Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Table of Contents block in all versions up to, and including, 1.0.6. This is due to the front-end TOC rendering script reading heading text via `innerText` and inserting it into the page using `innerHTML` without proper sanitization. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.","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":"Zypento Blocks \u003c= 1.0.6 - Authenticated (Author+) Stored Cross-Site Scripting via Table of Contents Block","id":"CVE-2026-5820","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Image Optimizer \u003c= 1.7.4 - Authenticated (Author+) Arbitrary File Deletion via Post Meta Field Injection","id":"CVE-2026-5821"},"packages":[],"prev":{"headline":"This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.","id":"CVE-2026-5819"},"products":["Zypento Blocks"],"published":"2026-04-22","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":"2026-04-22","vendors":["sproutient"]},"summary":"Authenticated attackers can inject arbitrary scripts via the Table of Contents block, executing them for other users.","url":"https://insights.sbomify.com/CVE-2026-5820/"}