CVE-2026-48942

Joomla Extension - getk2.org - Stored-XSS in K2 extension for Joomla < 2.26

MEDIUM

6.1

CVSS Score

Published: June 25, 2026 at 03:23 PM UTC

Updated: October 25, 2026 at 10:10 PM UTC

2 products affected across 2 vendorsK2K2

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Severity

MEDIUM6.1

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

Description

K2 ≤ 2.26 renders the `#__k2_users.image` column directly into HTML `src` attributes via two distinct templates, in both cases without HTML escaping.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

K2 · Joomlaworksjoomla

95%

v ≤ 2.26

K2 · GETK2 Org

90%

1.0-2.26

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Product

Source: cverecord

https://www.getk2.org/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.1MEDIUMCISA-ADP

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: REQUIRED
Scope: CHANGED
Confidentiality: LOW
Integrity: LOW
Availability: NONE

Vector?

Quick Info

StatusANALYZED

CWE

CWE-79

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