Vulnerability in MediaWiki

CVE-2017-8812

MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2 allows remote attackers to inject > (greater than) characters via the id attribute of a headline.

EPSS: 0.016 (72.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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

References

Frequently asked questions

What is CVE-2017-8812?
CVE-2017-8812 is a medium-severity vulnerability in MediaWiki. CVSS score: 5.3/10. Published 2017-11-15.
How severe is CVE-2017-8812?
Medium severity. CVSS v3 base score is 5.3 out of 10.