CVE-2025-65778

An issue was discovered in Wekan The Open Source kanban board system up to version 18.15, fixed in 18.16. Uploaded attachments can be served with attacker-controlled Content-Type (text/html), allowing execution of attacker-supplied HTML/JS in the application's origin and enabling session/token theft and CSRF actions.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/wekan/wekan	Product
https://github.com/wekan/wekan/blob/main/CHANGELOG.md#v816-2025-11-02-wekan--release	Release Notes
https://github.com/wekan/wekan/commit/e9a727301d7b4f1689a703503df668c0f4f4cab8	Patch
https://wekan.fi/hall-of-fame/spacebleed/	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:wekan_project:wekan:*:*:*:*:*:*:*:*

History

14 Oct 2026, 13:10

Type	Values Removed	Values Added
Summary		(es) Se descubrió un problema en Wekan, el sistema de tablero kanban de código abierto, hasta la versión 18.15, corregido en la 18.16. Los archivos adjuntos subidos pueden ser servidos con un Content-Type controlado por el atacante (text/html), permitiendo la ejecución de HTML/JS proporcionado por el atacante en el origen de la aplicación y posibilitando el robo de sesión/token y acciones de CSRF.

Information

Published : 2025-12-15 14:15

Updated : 2026-10-14 13:10

NVD link : CVE-2025-65778

Mitre link : CVE-2025-65778

CVE.ORG link : CVE-2025-65778

JSON object : View

Products Affected

wekan_project

wekan

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

{"id": "CVE-2025-65778", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-65778", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2025-12-16T15:39:21.040446Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 2.8}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 2.8}]}, "affected": [{"source": "cve@mitre.org", "affectedData": [{"vendor": "n/a", "product": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}]}], "published": "2025-12-15T14:15:57.227", "references": [{"url": "https://github.com/wekan/wekan", "tags": ["Product"], "source": "cve@mitre.org"}, {"url": "https://github.com/wekan/wekan/blob/main/CHANGELOG.md#v816-2025-11-02-wekan--release", "tags": ["Release Notes"], "source": "cve@mitre.org"}, {"url": "https://github.com/wekan/wekan/commit/e9a727301d7b4f1689a703503df668c0f4f4cab8", "tags": ["Patch"], "source": "cve@mitre.org"}, {"url": "https://wekan.fi/hall-of-fame/spacebleed/", "tags": ["Vendor Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in Wekan The Open Source kanban board system up to version 18.15, fixed in 18.16. Uploaded attachments can be served with attacker-controlled Content-Type (text/html), allowing execution of attacker-supplied HTML/JS in the application's origin and enabling session/token theft and CSRF actions."}, {"lang": "es", "value": "Se descubri\u00f3 un problema en Wekan, el sistema de tablero kanban de c\u00f3digo abierto, hasta la versi\u00f3n 18.15, corregido en la 18.16. Los archivos adjuntos subidos pueden ser servidos con un Content-Type controlado por el atacante (text/html), permitiendo la ejecuci\u00f3n de HTML/JS proporcionado por el atacante en el origen de la aplicaci\u00f3n y posibilitando el robo de sesi\u00f3n/token y acciones de CSRF."}], "lastModified": "2026-10-14T13:10:00.187", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:wekan_project:wekan:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F031B735-9703-4B9D-BDE9-CC4226B5EBD0", "versionEndExcluding": "8.16"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}