{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-21788 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-21788 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-21788 is a medium-severity cross-site scripting vulnerability in HCLSoftware Connections, published on 19 Mar 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-2026-21788 and fix it if it is affected.\n\nWhat it is: CVE-2026-21788 is a medium-severity cross-site scripting vulnerability in HCLSoftware Connections, published on 19 Mar 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-2026-21788 in the wild and no public exploit code.\n\nAffected product: HCLSoftware Connections. 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-2026-21788/ (Markdown: https://insights.sbomify.com/CVE-2026-21788/index.md)","id":"CVE-2026-21788","markdown":"https://insights.sbomify.com/CVE-2026-21788/index.md","name":"CVE-2026-21788","record":{"aliases":["GHSA-p5wg-ghxx-734q"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["account_takeover","code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"HCL Connections","requires_auth":"low_privilege","summary":"An attacker can execute arbitrary script code in a user's browser to steal authentication credentials and compromise accounts in HCL Connections.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"HCL","cpe":[{"product":"connections","vendor":"hcltech"}],"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":"HCL Connections is vulnerable to a cross-site scripting attack where an attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user which leads to executing malicious script code.  This may allow the attacker steal cookie-based authentication credentials and comprise user's account then launch other attacks.","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":"HCL Connections is vulnerable to cross-site scripting (XSS)","id":"CVE-2026-21788","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"HCL Connections is vulnerable to broken access control","id":"CVE-2026-21789"},"packages":[],"prev":{"headline":"HCL Sametime for iOS is affected by sensitive information disclosure","id":"CVE-2026-21786"},"products":["Connections"],"published":"2026-03-19","related":[{"cvss_score":6.5,"headline":"Information disclosure in \"HCL Connections\"","id":"CVE-2020-4085","kev_date_added":null,"published":"2020-04-22"},{"cvss_score":6.1,"headline":"Open redirect in HCL Connections","id":"CVE-2019-4209","kev_date_added":null,"published":"2020-05-01"},{"cvss_score":5.5,"headline":"HCL Connections s vulnerable to possible denial of service for certain users","id":"CVE-2023-28018","kev_date_added":null,"published":"2024-02-12"},{"cvss_score":5.5,"headline":"Information disclosure in \"HCL Connections\"","id":"CVE-2020-4083","kev_date_added":null,"published":"2020-03-05"},{"cvss_score":5.4,"headline":"HCL Connections is vulnerable to a cross-site scripting (XSS) vulnerability","id":"CVE-2024-30112","kev_date_added":null,"published":"2024-06-25"},{"cvss_score":5.4,"headline":"HCL Connections is vulnerable to cross-site scripting","id":"CVE-2023-28017","kev_date_added":null,"published":"2023-12-07"}],"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":"2026-03-19","vendors":["HCLSoftware"]},"summary":"An attacker can execute arbitrary script code in a user's browser to steal authentication credentials and compromise accounts in HCL Connections.","url":"https://insights.sbomify.com/CVE-2026-21788/"}