CVE-2026-48940

EUVD-2026-39445
A Joomla user with K2 "create item" rights (Author tier by default) can submit an article whose `embedVideo` POST field contains a raw `<script>` tag; K2 stores it verbatim and renders it unescaped to any visitor of the article page.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
3.4 LOW
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 6.33%
Affected Products (NVD)
VendorProductVersion
joomlaworksk2
𝑥
≤ 2.26
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://www.getk2.org/