How severe is CVE-2018-10305?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Simplemachines Simple_machines_forum

CVE-2018-10305

The MessageSearch2 function in PersonalMessage.php in Simple Machines Forum (SMF) before 2.0.15 does not properly use the possible_users variable in a query, which might allow attackers to bypass intended access restrictions.

EPSS: 0.012 (63.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Simplemachines Simple_machines_forum
N/a — versions n/a

References

cve@mitre.org (x_refsource_MISC, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2018-10305?: CVE-2018-10305 is a critical-severity vulnerability in Simplemachines Simple_machines_forum. CVSS score: 9.8/10. Published 2018-04-24.
How severe is CVE-2018-10305?: Critical severity. CVSS v3 base score is 9.8 out of 10.