{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-55665 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-55665 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-55665 is a high-severity cross-site scripting vulnerability in gristlabs grist-core, published on 10 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-55665 and fix it if it is affected.\n\nWhat it is: CVE-2026-55665 is a high-severity cross-site scripting vulnerability in gristlabs grist-core, published on 10 Jul 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-55665 in the wild and no public exploit code.\n\nAffected product: gristlabs grist-core. 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-2026-55665/ (Markdown: https://insights.sbomify.com/CVE-2026-55665/index.md)","id":"CVE-2026-55665","markdown":"https://insights.sbomify.com/CVE-2026-55665/index.md","name":"CVE-2026-55665","record":{"aliases":["GHSA-7f6v-vghq-34xq"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"Grist spreadsheet software","requires_auth":"none","summary":"Attackers can execute arbitrary JavaScript in victims' sessions via unsanitized links, enabling data access and privilege escalation to owner level.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":8.5,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Grist is spreadsheet software using Python as its formula language. Prior to 1.7.15, Grist contained two cross-site scripting vulnerabilities where an attacker-controlled value reached a link's href without scheme validation, so a javascript URL could run in a victim's Grist origin on a single click. On the account-selection page, /welcome/select-account used its next query parameter as the account buttons' link target. In document tours, the GristDocTour table's Link_URL column became a clickable button, allowing an editor of a shared document to store a javascript URL there that ran when another user opened the document and clicked the tour link. Because the script runs in the victim's authenticated session, it can call Grist APIs as the victim, reading or modifying data and changing sharing settings and access rules. A document editor could therefore escalate to owner-level access. This issue is fixed in version 1.7.15.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"DOM-based XSS in Grist via unsanitized links, enabling privilege escalation","id":"CVE-2026-55665","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Rocket.Chat: Email Parameter Fallback Leads To Account Takeover Within Apple OAuth","id":"CVE-2026-55666"},"packages":[],"prev":{"headline":"Grist: Insufficient access control in the /forms endpoint exposes table metadata","id":"CVE-2026-55664"},"products":["grist-core"],"published":"2026-07-10","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":"2026-07-14","vendors":["gristlabs"]},"summary":"Attackers can execute arbitrary JavaScript in victims' sessions via unsanitized links, enabling data access and privilege escalation to owner level.","url":"https://insights.sbomify.com/CVE-2026-55665/"}