CVE-2015-8834

6.1 mediumEPSS 1.8%

Medium (6.1) in wordpress wordpress. EPSS 1.8% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.0

6.1 medium

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS: 1.8% chance of exploitation in the next 30 days; higher than 78% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2016-05-22
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

wordpress:wordpress

References

http://www.debian.org/security/2016/dsa-3639
https://codex.wordpress.org/Version_4.2.2
https://wordpress.org/news/2015/05/wordpress-4-2-2/
http://www.debian.org/security/2016/dsa-3639
https://codex.wordpress.org/Version_4.2.2

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