{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-78087 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-78087 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-78087 is a medium-severity cross-site scripting vulnerability in vektor-inc VK Blocks, published on 15 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-78087 and fix it if it is affected.\n\nWhat it is: CVE-2026-78087 is a medium-severity cross-site scripting vulnerability in vektor-inc VK Blocks, published on 15 Oct 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-2026-78087 in the wild and no public exploit code.\n\nAffected product: vektor-inc VK 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-2026-78087/ (Markdown: https://insights.sbomify.com/CVE-2026-78087/index.md)","id":"CVE-2026-78087","markdown":"https://insights.sbomify.com/CVE-2026-78087/index.md","name":"CVE-2026-78087","record":{"aliases":["GHSA-5vv9-v5h9-cghv"],"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 contributors can inject arbitrary scripts via the Group Block linkToPost feature, leading to stored XSS execution 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 VK Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Group Block 'linkToPost' Feature in all versions up to, and including, 1.126.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-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":"VK Blocks \u003c= 1.126.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Group Block 'linkToPost' Feature","id":"CVE-2026-78087","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Contest Gallery \u003c= 32.0.1 - Unauthenticated Arbitrary File Upload via 'baseUrlForFacebook' Parameter","id":"CVE-2026-78088"},"packages":[],"prev":{"headline":"Joomla Extension - joomshaper.com - Path Traversal in Gallery Image Management in SP Property \u003c 4.1.4","id":"CVE-2026-78085"},"products":["VK Blocks"],"published":"2026-10-15","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":"2026-10-15","vendors":["vektor-inc"]},"summary":"Authenticated contributors can inject arbitrary scripts via the Group Block linkToPost feature, leading to stored XSS execution for other users.","url":"https://insights.sbomify.com/CVE-2026-78087/"}