{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-9507", "assignerOrgId": "0cbda920-cd7f-484a-8e76-bf7f4b7f4516", "state": "PUBLISHED", "assignerShortName": "INCIBE", "dateReserved": "2026-05-25T13:36:09.788Z", "datePublished": "2026-06-16T11:47:56.882Z", "dateUpdated": "2026-06-16T11:50:42.928Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "0cbda920-cd7f-484a-8e76-bf7f4b7f4516", "shortName": "INCIBE", "dateUpdated": "2026-06-16T11:50:42.928Z"}, "title": "Session fixation vulnerability in Enhancesoft's osTicket", "datePublic": "2026-06-16T11:44:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-38", "description": "CWE-38 Path traversal: '\\absolute\\pathname\\here'", "type": "CWE"}]}], "affected": [{"vendor": "Enhancesoft", "product": "osTicket", "versions": [{"status": "affected", "version": "1.18.2"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "A session fixation vulnerability has been identified in osTicket v1.18.2. This security flaw allows an attacker to hijack a victim\u2019s account by keeping the initial session identifier (OSTSESSID) active after a successful login.\n\n\n\nThe issue lies in the fact that the application does not invalidate the pre-authentication cookie or generate a new identifier for the authenticated context. As a result, if an attacker manages to set a known session identifier in the victim\u2019s browser, they will be able to maintain unauthorised access to the account once the victim has authenticated.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "A session fixation vulnerability has been identified in osTicket v1.18.2. This security flaw allows an attacker to hijack a victim\u2019s account by keeping the initial session identifier (OSTSESSID) active after a successful login.\n<br>\n<br>The issue lies in the fact that the application does not invalidate the pre-authentication cookie or generate a new identifier for the authenticated context. As a result, if an attacker manages to set a known session identifier in the victim\u2019s browser, they will be able to maintain unauthorised access to the account once the victim has authenticated."}]}], "references": [{"url": "https://www.incibe.es/en/incibe-cert/notices/aviso/session-fixation-vulnerability-enhancesofts-osticket", "tags": ["patch"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "ACTIVE", "vulnConfidentialityImpact": "LOW", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "MEDIUM", "baseScore": 5.1, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N"}}], "solutions": [{"lang": "en", "value": "The current (legacy) source code is in maintenance mode, whilst Enhancesoft is focusing on a complete rewrite of the code (v2.0). This means that release cycles and security updates for the legacy code have been significantly delayed.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "The current (legacy) source code is in maintenance mode, whilst Enhancesoft is focusing on a complete rewrite of the code (v2.0). This means that release cycles and security updates for the legacy code have been significantly delayed."}]}], "credits": [{"lang": "en", "value": "Mario Valiente", "type": "finder"}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 1.0.2"}}}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "A session fixation vulnerability has been identified in osTicket v1.18.2. This security flaw allows an attacker to hijack a victim\u2019s account by keeping the initial session identifier (OSTSESSID) active after a successful login.\n\n\n\nThe issue lies in the fact that the application does not invalidate the pre-authentication cookie or generate a new identifier for the authenticated context. As a result, if an attacker manages to set a known session identifier in the victim\u2019s browser, they will be able to maintain unauthorised access to the account once the victim has authenticated."}], "id": "CVE-2026-9507", "lastModified": "2026-06-16T13:16:38.140", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.1, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "ACTIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cve-coordination@incibe.es", "type": "Secondary"}]}, "published": "2026-06-16T13:16:38.140", "references": [{"source": "cve-coordination@incibe.es", "url": "https://www.incibe.es/en/incibe-cert/notices/aviso/session-fixation-vulnerability-enhancesofts-osticket"}], "sourceIdentifier": "cve-coordination@incibe.es", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-38"}], "source": "cve-coordination@incibe.es", "type": "Primary"}]}

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