Improper input validation in MediaWiki

CVE-2017-8811

The implementation of raw message parameter expansion in MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2 allows HTML mangling attacks.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.010 (60.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

  • Mediawiki — versions 1.28.0, 1.28.1, 1.28.2
  • Debian Debian_linux — versions 9.0
  • N/a Mediawiki Before 1.27.4, 1.28.x 1.28.3, And 1.29.x 1.29.2 — versions MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2017-8811?
CVE-2017-8811 is a medium-severity vulnerability in MediaWiki, classified under Improper Input Validation. CVSS score: 6.1/10. Published 2017-11-15.
How severe is CVE-2017-8811?
Medium severity. CVSS v3 base score is 6.1 out of 10.