Information disclosure in MediaWiki Abusefilter

CVE-2019-18987

An issue was discovered in the AbuseFilter extension through 1.34 for MediaWiki. Once a specific abuse filter has (accidentally or otherwise) been made public, its previous versions can be exposed, thus potentially disclosing private or sensitive information within the filter's definition.

Vulnerability class: Information Disclosure

EPSS: 0.011 (62.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Weakness classification (CWE)

References

  • cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
  • cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (Product, x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2019-18987?
CVE-2019-18987 is a medium-severity vulnerability in MediaWiki Abusefilter, classified under Information Disclosure. CVSS score: 5.3/10. Published 2019-11-15.
How severe is CVE-2019-18987?
Medium severity. CVSS v3 base score is 5.3 out of 10.