CVE-2026-48942: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in getk2.com K2 extension for Joomla
K2 ≤ 2.26 renders the `#__k2_users.image` column directly into HTML `src` attributes via two distinct templates, in both cases without HTML escaping.
AI Analysis
Technical Summary
The K2 extension for Joomla, versions 1.0 through 2.26, improperly neutralizes input during web page generation by rendering the `#__k2_users.image` column directly into HTML src attributes without HTML escaping. This results in a CWE-79 cross-site scripting vulnerability exploitable through two distinct templates. No CVSS score or vendor remediation information is currently available.
Potential Impact
An attacker could exploit this vulnerability to inject malicious scripts into web pages viewed by other users, potentially leading to session hijacking, defacement, or other client-side attacks. However, no known exploits are reported in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should consider disabling or restricting use of the affected templates or sanitizing inputs manually if possible.
CVE-2026-48942: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in getk2.com K2 extension for Joomla
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.
CVSS v3.1
Score 6.1medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The K2 extension for Joomla, versions 1.0 through 2.26, improperly neutralizes input during web page generation by rendering the `#__k2_users.image` column directly into HTML src attributes without HTML escaping. This results in a CWE-79 cross-site scripting vulnerability exploitable through two distinct templates. No CVSS score or vendor remediation information is currently available.
Potential Impact
An attacker could exploit this vulnerability to inject malicious scripts into web pages viewed by other users, potentially leading to session hijacking, defacement, or other client-side attacks. However, no known exploits are reported in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should consider disabling or restricting use of the affected templates or sanitizing inputs manually if possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Joomla
- Date Reserved
- 2026-05-26T16:47:13.550Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a3d4d4b4853345fc124a2fd
Added to database: 06/25/2026, 15:46:19 UTC
Last enriched: 06/25/2026, 16:02:10 UTC
Last updated: 06/26/2026, 02:21:05 UTC
Views: 7
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.