CVE-2015-8834
wordpress - security update
6.1
MEDIUM
CVSS 3.1
EPSS 0.75%
Description
Cross-site scripting (XSS) vulnerability in wp-includes/wp-db.php in WordPress before 4.2.2 allows remote attackers to inject arbitrary web script or HTML via a long comment that is improperly stored because of limitations on the MySQL TEXT data type. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-3440.
How to fix CVE-2015-8834
To remediate CVE-2015-8834, upgrade the affected package to a fixed version below.
- —upgrade to 4.2.2+dfsg-1 or later
- —upgrade to 3.6.1+dfsg-1~deb7u12 or later
- —upgrade to 4.1+dfsg-1+deb8u9 or later
Is CVE-2015-8834 being exploited?
Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 4.2.2+dfsg-1
- from 0, < 3.6.1+dfsg-1~deb7u12
- from 0, < 4.1+dfsg-1+deb8u9
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.1 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |