CVE-2021-31555
7.5
HIGH
CVSS 3.1
EPSS 0.21%
Description
An issue was discovered in the Oauth extension for MediaWiki through 1.35.2. It did not validate the oarc_version (aka oauth_registered_consumer.oarc_version) parameter's length.
How to fix CVE-2021-31555
To remediate CVE-2021-31555, upgrade the affected package to a fixed version below.
- Bitnami/mediawiki—upgrade to 1.35.3 or later
Is CVE-2021-31555 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1.35.3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |