CVE-2019-12473
Wikimedia Potential DOS due to slow WatchedItemStore::countVisitingWatchersMultiple
7.5
HIGH
CVSS 3.1
EPSS 0.46%
Description
Wikimedia MediaWiki 1.27.0 through 1.32.1 might allow DoS. Passing invalid titles to the API could cause a DoS by querying the entire watchlist table. Fixed in 1.32.2, 1.31.2, 1.30.2 and 1.27.6.
How to fix CVE-2019-12473
To remediate CVE-2019-12473, upgrade the affected package to a fixed version below.
- Debian/mediawiki—upgrade to 1:1.31.2-1 or later
- —upgrade to 1.27.6 or later
Is CVE-2019-12473 being exploited?
Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1:1.31.2-1
- >= 1.27.0, < 1.27.6
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |