CVE-2026-48942
Joomla Extension - getk2.org - Stored-XSS in K2 extension for Joomla < 2.26
K2 ≤ 2.26 renders the #__k2_users.image column directly into HTML src attributes via two distinct templates, in both cases without HTML escaping.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Joomla Extension - getk2.org - Stored-XSS in K2 extension for Joomla < 2.26
K2 ≤ 2.26 renders the #__k2_users.image column directly into HTML src attributes via two distinct templates, in both cases without HTML escaping.
- Record
CVE-2026-48942- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2026-39439
K2 ≤ 2.26 renders the #__k2_users.image column directly into HTML src attributes via two distinct templates, in both cases without HTML escaping.
- Record
EUVD-2026-39439- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-5hmf-7m33-2v23
K2 ≤ 2.26 renders the `#__k2_users.image` column directly into HTML `src` attributes via two...
K2 ≤ 2.26 renders the #__k2_users.image column directly into HTML src attributes via two distinct templates, in both cases without HTML escaping.
- Record
GHSA-5hmf-7m33-2v23- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
NVD
K2 ≤ 2.26 renders the #__k2_users.image column directly into HTML src attributes via two distinct templates, in both cases without HTML escaping.
- Record
CVE-2026-48942- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-48942 is a medium vulnerability (CVSS 6.1) in Getk2.com K2 Extension For Joomla, published June 25, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.25%, the 16th percentile. No source names a fixed version.