{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-76303 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-76303 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-76303 is a medium-severity vulnerability in Splunk SOAR, published on 21 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-76303 and fix it if it is affected.\n\nWhat it is: CVE-2026-76303 is a medium-severity vulnerability in Splunk SOAR, published on 21 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-76303 in the wild and no public exploit code.\n\nAffected product: Splunk SOAR. 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-2026-76303/ (Markdown: https://insights.sbomify.com/CVE-2026-76303/index.md)","id":"CVE-2026-76303","markdown":"https://insights.sbomify.com/CVE-2026-76303/index.md","name":"CVE-2026-76303","record":{"aliases":["GHSA-mr43-r8rx-5q4q"],"analysis":null,"analysis_generated_by":null,"assigner":"cisco","cpe":[],"cvss":{"score":5.7,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"In Splunk SOAR versions below 8.7.0, a user that holds a role with the install_apps capability could store attacker-controlled content that Splunk SOAR displays in app documentation by installing an app. If another user who holds a role with permission to view apps opens the app documentation, Splunk SOAR could run that content in the browser of the user who opened the app documentation. With this access, the first user could access data and make changes that the user who opened the app documentation could make.\nThe vulnerability is possible because Splunk SOAR does not sanitize app documentation content before it displays that content.\nThe vulnerability requires the attacker to phish the affected user by tricking them into initiating a request within their browser. The user that holds a role with the install_apps capability should not be able to exploit the vulnerability at will.\nFor more information see Manage roles and permissions in Splunk SOAR (On-premises) (https://help.splunk.com/en/splunk-soar/soar-on-premises/administer-soar-on-premises/7.1.0/manage-your-splunk-soar-on-premises-users-and-accounts/manage-roles-and-permissions-in-splunk-soar-on-premises) and Add and configure apps and assets to provide actions in Splunk SOAR (On-premises) (https://help.splunk.com/en/splunk-soar/soar-on-premises/administer-soar-on-premises/8.6.0/manage-your-splunk-soar-on-premises-apps-and-assets/add-and-configure-apps-and-assets-to-provide-actions-in-splunk-soar-on-premises) in the Splunk documentation.","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":"Stored Cross-Site Scripting (XSS) through App Documentation in Splunk SOAR","id":"CVE-2026-76303","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Sensitive Information Disclosure through Automation Broker Configuration in Splunk SOAR","id":"CVE-2026-76304"},"packages":[],"prev":{"headline":"Security Hardening in Splunk Enterprise - October 2026","id":"CVE-2026-76302"},"products":["Splunk SOAR"],"published":"2026-10-21","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":"total"},"state":"PUBLISHED","updated":"2026-10-23","vendors":["Splunk"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-76303/"}