CVE-2026-48940

3.4 LOW 0.3% exploit odds No fix listed XSS Web app

What it is

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.

At a glance

Exploitability: Can be exploited over the network with an admin-level account, but needs a user to act. Limited direct impact.
Exploit odds: 0.3% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2026-06-25 16:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-10-25 22:10 UTC Last updatedMost recent change to the record

Details

Published: 2026-06-25 16:16 UTC
Last modified: 2026-10-25 22:10 UTC
Exploit probability: 0.3% · EPSS, next 30 days
Weakness: CWE-79 · Cross-site scripting
Record status: Analyzed

Affected

Joomlaworks k2 ≤ 2.26

Attack profile CVSS 3.1 · 3.4

Attack vector: Network
Complexity: Low
Privileges needed: High
User interaction: Required
Scope: Changed
Confidentiality: Low
Integrity: None
Availability: None

Raw vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:N/A:N

Download Square Reddit

References

https://www.getk2.org/

NVD record · CVE.org record