Privilege escalation in MediaWiki

CVE-2018-0503

Mediawiki 1.31 before 1.31.1, 1.30.1, 1.29.3 and 1.27.5 contains a flaw where contrary to the documentation, $wgRateLimits entry for 'user' overrides that for 'newbie'.

Vulnerability class: Privilege Escalation

EPSS: 0.015 (72.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2018-0503?
CVE-2018-0503 is a medium-severity vulnerability in MediaWiki, classified under Improper Privilege Management. CVSS score: 4.3/10. Published 2018-10-04.
How severe is CVE-2018-0503?
Medium severity. CVSS v3 base score is 4.3 out of 10.