{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-2951 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-2951 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-2951 is a medium-severity cross-site scripting vulnerability in Gutentor – Gutenberg Blocks – Page Builder for Gutenberg Editor, published on 23 Apr 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-2951 and fix it if it is affected.\n\nWhat it is: CVE-2026-2951 is a medium-severity cross-site scripting vulnerability in Gutentor – Gutenberg Blocks – Page Builder for Gutenberg Editor, published on 23 Apr 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-2951 in the wild and no public exploit code.\n\nAffected product: Gutentor – Gutenberg Blocks – Page Builder for Gutenberg Editor. 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-2026-2951/ (Markdown: https://insights.sbomify.com/CVE-2026-2951/index.md)","id":"CVE-2026-2951","markdown":"https://insights.sbomify.com/CVE-2026-2951/index.md","name":"CVE-2026-2951","record":{"aliases":["GHSA-vrq9-2rh7-jjg5"],"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 into pages via the Gutentor plugin, leading to code execution when other users view the page.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Wordfence","cpe":[],"cvss":{"score":5.4,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/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 Gutentor – Gutenberg Blocks – Page Builder for Gutenberg Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 3.5.5 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":"Cross-site scripting in Gutentor – Gutenberg Blocks – Page Builder for Gutenberg Editor","id":"CVE-2026-2951","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Vaelsys HTTP POST Request tree_server.php os command injection","id":"CVE-2026-2952"},"packages":[],"prev":{"headline":"lodash vulnerable to Prototype Pollution via array path bypass in `_.unset` and `_.omit`","id":"CVE-2026-2950"},"products":["Gutentor – Gutenberg Blocks – Page Builder for Gutenberg Editor"],"published":"2026-04-23","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":"2026-04-23","vendors":["gutentor"]},"summary":"Authenticated contributors can inject arbitrary scripts into pages via the Gutentor plugin, leading to code execution when other users view the page.","url":"https://insights.sbomify.com/CVE-2026-2951/"}