CVE-2026-21788

{"id": "CVE-2026-21788", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-21788", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-03-19T13:30:24.739932Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "psirt@hcl.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 2.3}]}, "affected": [{"source": "psirt@hcl.com", "affectedData": [{"vendor": "HCLSoftware", "product": "Connections", "versions": [{"status": "affected", "version": "8"}], "defaultStatus": "unaffected"}]}], "published": "2026-03-19T09:16:16.950", "references": [{"url": "https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0129107", "tags": ["Vendor Advisory"], "source": "psirt@hcl.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "psirt@hcl.com", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "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.\u00a0 This may allow the attacker steal cookie-based authentication credentials and comprise user's account then launch other attacks."}, {"lang": "es", "value": "HCL Connections es vulnerable a un ataque de cross-site scripting donde un atacante puede aprovechar este problema para ejecutar c\u00f3digo de script arbitrario en el navegador de un usuario desprevenido, lo que lleva a la ejecuci\u00f3n de c\u00f3digo de script malicioso. Esto puede permitir al atacante robar credenciales de autenticaci\u00f3n basadas en cookies y comprometer la cuenta del usuario para luego lanzar otros ataques."}], "lastModified": "2026-06-17T10:19:00.733", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:hcltech:connections:8.0:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "65CA8438-B6A6-4B36-826D-8625AACBC8FE"}, {"criteria": "cpe:2.3:a:hcltech:connections:8.0:cumulative_release1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BF707A30-B342-43F2-A390-60E8FA8384D5"}, {"criteria": "cpe:2.3:a:hcltech:connections:8.0:cumulative_release10:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "718ED7EC-3899-448D-B661-39463F5F71D2"}, {"criteria": "cpe:2.3:a:hcltech:connections:8.0:cumulative_release11:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FFA414A1-C353-427F-B4EC-ED5BFC13EAF9"}, {"criteria": "cpe:2.3:a:hcltech:connections:8.0:cumulative_release12:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5A5A7E4B-9BDE-432E-8FAB-7CD8F1A2A81A"}, {"criteria": "cpe:2.3:a:hcltech:connections:8.0:cumulative_release2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "294AE19B-3678-49C3-8613-A9331C5C1481"}, {"criteria": "cpe:2.3:a:hcltech:connections:8.0:cumulative_release3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "773D1288-DF28-43F3-9517-B176DD840A8C"}, {"criteria": "cpe:2.3:a:hcltech:connections:8.0:cumulative_release4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7FCB8E35-3FFA-42FA-8AEB-A2DD22D809C9"}, {"criteria": "cpe:2.3:a:hcltech:connections:8.0:cumulative_release5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8948C358-B168-45E3-BC9F-E5DA4DD56203"}, {"criteria": "cpe:2.3:a:hcltech:connections:8.0:cumulative_release6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C6879F00-1C87-44A6-83DF-A1DC80A85A88"}, {"criteria": "cpe:2.3:a:hcltech:connections:8.0:cumulative_release7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "28450E88-8377-4B0D-9383-B34C9EF28CC9"}, {"criteria": "cpe:2.3:a:hcltech:connections:8.0:cumulative_release8:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "13C3274C-0784-4C88-9A2D-D7AAE3D9FC2E"}, {"criteria": "cpe:2.3:a:hcltech:connections:8.0:cumulative_release9:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F3848284-F133-4B35-AC04-9E4FFB17EDF8"}], "operator": "OR"}]}], "sourceIdentifier": "psirt@hcl.com"}