CVE-2018-12291

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

The on_get_missing_events function in handlers/federation.py in Matrix Synapse before 0.31.1 has a security bug in the get_missing_events federation API where event visibility rules were not applied correctly.

Metrics

CVSS 3.0 7.5/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected software

No affected versions have been published.

Timeline

Published
Jun 13, 2018
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2018

CVE-2018-122929.8A use-after-free vulnerability exists in DOMProxyHandler::EnsureExpandoObject in Pale Moon before 27.9.3.CVE-2018-122938.8The getImageData function in the ImageBufferCairo class in WebCore/platform/graphics/cairo/ImageBufferCairo.cpp in WebKit, as used in WebKitCVE-2018-122948.8WebCore/platform/graphics/texmap/TextureMapperLayer.cpp in WebKit, as used in WebKitGTK+ prior to version 2.20.2, is vulnerable to a use aftCVE-2018-122959.8SQL injection in folderViewSpecific.psp in Seagate NAS OS version 4.3.15.1 allows attackers to execute arbitrary SQL commands via the dirId CVE-2018-122967.5Insufficient access control in /api/external/7.0/system.System.get_infos in Seagate NAS OS version 4.3.15.1 allows attackers to obtain inforCVE-2018-122976.1Cross-site scripting in API error pages in Seagate NAS OS version 4.3.15.1 allows attackers to execute JavaScript via URL path names.CVE-2018-122987.5Directory Traversal in filebrowser in Seagate NAS OS 4.3.15.1 allows attackers to read files within the application's container via a URL paCVE-2018-122995.4Cross-site scripting in filebrowser in Seagate NAS OS version 4.3.15.1 allows attackers to execute JavaScript via uploaded file names.CVE-2018-12308.8Pivotal Spring Batch Admin, all versions, does not contain cross site request forgery protection. A remote unauthenticated user could craft CVE-2018-123006.1Arbitrary Redirect in echo-server.html in Seagate NAS OS version 4.3.15.1 allows attackers to disclose information in the Referer header viaCVE-2018-123017.5Unvalidated URL in Download Manager in Seagate NAS OS version 4.3.15.1 allows attackers to access the loopback interface via a Download URL CVE-2018-123026.1Missing HTTPOnly flag on session cookies in the Seagate NAS OS version 4.3.15.1 web application allows attackers to steal session tokens via