Auth bypass in Discuz Discuzx

CVE-2018-5377

Discuz! DiscuzX X3.4 allows remote attackers to bypass intended access restrictions via the archiver\index.php action parameter.

Vulnerability class: Broken Access Control

EPSS: 0.021 (79.3th 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

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2018-5377?
CVE-2018-5377 is a critical-severity vulnerability in Discuz Discuzx, classified under Missing Authorization. CVSS score: 9.8/10. Published 2018-01-12.
How severe is CVE-2018-5377?
Critical severity. CVSS v3 base score is 9.8 out of 10.