CVE-2018-12423

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

In Synapse before 0.31.2, unauthorised users can hijack rooms when there is no m.room.power_levels event in force.

Metrics

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

Affected software

VendorProductVersions
n/an/an/a

References

Timeline

Published
Jun 14, 2018
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2018

CVE-2018-124269.8The WP Live Chat Support Pro plugin before 8.0.07 for WordPress is vulnerable to unauthenticated Remote Code Execution due to client-side vaCVE-2018-124295.4JEESNS through 1.2.1 allows XSS attacks by ordinary users who publish articles containing a crafted payload in order to capture an administrCVE-2018-12437.5Dell EMC iDRAC6, versions prior to 2.91, iDRAC7/iDRAC8, versions prior to 2.60.60.60 and iDRAC9, versions prior to 3.21.21.21, contain a weaCVE-2018-124314.8SeaCMS V6.61 has XSS via the site name parameter on an adm1n/admin_config.php page (aka a system management page).CVE-2018-124326.1JavaMelody through 1.60.0 has XSS via the counter parameter in a clear_counter action to the /monitoring URI.CVE-2018-124334.9cryptlib through 3.4.4 allows a memory-cache side-channel attack on DSA and ECDSA signatures, aka the Return Of the Hidden Number Problem orCVE-2018-124344.7LibreSSL before 2.6.5 and 2.7.x before 2.7.4 allows a memory-cache side-channel attack on DSA and ECDSA signatures, aka the Return Of the HiCVE-2018-124355.9Botan 2.5.0 through 2.6.0 before 2.7.0 allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number PrCVE-2018-124364.7wolfcrypt/src/ecc.c in wolfSSL before 3.15.1.patch allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the HiddCVE-2018-124374.9LibTomCrypt through 1.18.1 allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHCVE-2018-124384.9The Elliptic Curve Cryptography library (aka sunec or libsunec) allows a memory-cache side-channel attack on ECDSA signatures, aka the ReturCVE-2018-124394.7MatrixSSL through 3.9.5 Open allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or R
CVE-2018-12423: High severity, CVSS 7.5 | Vulnix