Auth bypass in MediaWiki

CVE-2018-0505

Mediawiki 1.31 before 1.31.1, 1.30.1, 1.29.3 and 1.27.5 contains a flaw where BotPasswords can bypass CentralAuth's account lock

Vulnerability class: Broken Authentication

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.020 (79.7th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 79.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2018-0505: held from 0.019 to 0.020.

EPSS over last 30 days · oldest: 0.019 · newest: 0.020 · change: +0.000

Affected products

  • MediaWiki — versions before 1.31.1, 1.30.1, 1.29.3 and 1.27.5, 1.30.1, 1.27.5
  • Debian Linux — versions 9.0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2018-0505?
CVE-2018-0505 is a medium-severity vulnerability in MediaWiki, classified under Improper Authentication. CVSS score: 6.5/10. Published 2018-10-04.
How severe is CVE-2018-0505?
Medium severity. CVSS v3 base score is 6.5 out of 10.