{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-10618 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-10618 is a medium-severity cross-site scripting vulnerability in gohugoio hugo, published on 24 Aug 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-2026-10618 and fix it if it is affected.\n\nWhat it is: CVE-2026-10618 is a medium-severity cross-site scripting vulnerability in gohugoio hugo, published on 24 Aug 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-2026-10618 in the wild and no public exploit code.\n\nAffected product: gohugoio hugo. 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-2026-10618/ (Markdown: https://insights.sbomify.com/CVE-2026-10618/index.md)","id":"CVE-2026-10618","markdown":"https://insights.sbomify.com/CVE-2026-10618/index.md","name":"CVE-2026-10618","record":{"aliases":["DEBIAN-CVE-2026-10618","GHSA-2gp4-jcxx-7hpr","MINI-3qmx-px8g-qr6p","MINI-q439-h444-r7fg","UBUNTU-CVE-2026-10618"],"analysis":{"component_type":"developer_tool","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Static site generator","requires_auth":"low_privilege","summary":"Attackers can inject malicious scripts via unescaped code-fence attributes in Hugo, leading to stored XSS for all site visitors.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[{"product":"hugo","vendor":"gohugo"}],"cvss":{"score":4.8,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Hugo's default fenced-code-block renderer writes attribute values taken from the code-fence info string into the rendered HTML without escaping them. New in markup/internal/attributes/attributes.go converts every attribute value from a byte slice to a string as it is stored, deliberately dropping the escaping that used to happen there, and RenderAttributes in the same file escapes only values that are still byte slices, so its escaping branch is never reached and every value is written verbatim. The function's documentation states that it performs HTML escaping of string attributes, which it does not. A quote inside an attribute value in the info string therefore terminates the attribute and allows a further attribute, including an event handler, to be placed on the wrapper element, and the script runs for every visitor who loads the page. This path is reached under the default configuration, with code fences enabled and without goldmark's unsafe setting or any custom render hook. Attribute names beginning with on are filtered when the attributes are parsed, so injection is achieved through the value rather than the name.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Hugo 0.93.0 through 0.165.0 Stored Cross-Site Scripting via Unescaped Code-Fence Attribute Values","id":"CVE-2026-10618","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"sayan365 student-management-system improper authentication","id":"CVE-2026-10619"},"packages":[],"prev":{"headline":"nextlevelbuilder GoClaw Webhook Verification auth.go resolveAuth missing authentication","id":"CVE-2026-10617"},"products":["hugo"],"published":"2026-08-24","related":[{"cvss_score":9.3,"headline":"Hugo 0.162.0 to 0.164.x - Node Permission Model Bypass via Default TailwindCSS Child-Process Grant","id":"CVE-2026-75926","kev_date_added":null,"published":"2026-08-18"},{"cvss_score":8.7,"headline":"Hugo v0.161.0 to v0.165.0 Arbitrary File Read via Symlinks","id":"CVE-2026-100690","kev_date_added":null,"published":"2026-09-26"},{"cvss_score":8.7,"headline":"Hugo before v0.166.0 Path Traversal via Symlinked Mount Roots","id":"CVE-2026-100692","kev_date_added":null,"published":"2026-09-26"},{"cvss_score":8.6,"headline":"Hugo v0.162.0 before v0.166.0 IP-literal Deny Rule Bypass","id":"CVE-2026-100693","kev_date_added":null,"published":"2026-09-26"},{"cvss_score":7.7,"headline":"Hugo can execute a binary from the current directory on Windows","id":"CVE-2020-26284","kev_date_added":null,"published":"2020-12-21"},{"cvss_score":6.9,"headline":"Hugo: Symlink confinement bypass in resources.Get","id":"CVE-2026-50135","kev_date_added":null,"published":"2026-07-06"},{"cvss_score":6.3,"headline":"Hugo: security.http.urls allow-list bypass via HTTP redirects","id":"CVE-2026-50134","kev_date_added":null,"published":"2026-07-06"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"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":"2026-08-26","vendors":["gohugoio"]},"summary":"Attackers can inject malicious scripts via unescaped code-fence attributes in Hugo, leading to stored XSS for all site visitors.","url":"https://insights.sbomify.com/CVE-2026-10618/"}