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PatchSiren cyber security CVE debrief

CVE-2026-48941 Joomlaworks CVE debrief

CVE-2026-48941 is a MEDIUM severity vulnerability in the K2 frontend `item.checkin` task. The task accepts an unauthenticated `sigProFolder` query parameter and uses it directly to address a `JFolder::delete()` call under `/media/k2/galleries/`. This vulnerability was published on June 25, 2026, and modified on June 28, 2026. The Common Vulnerability Scoring System (CVSS) score is 6.5. The vulnerability is related to CWE-862. The affected product is K2 by Joomlaworks.

Vendor
Joomlaworks
Product
K2
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-25
Original CVE updated
2026-06-28
Advisory published
2026-06-25
Advisory updated
2026-06-28

Who should care

Administrators and users of K2 by Joomlaworks should be aware of this vulnerability. The vulnerability allows an unauthenticated attacker to delete files under `/media/k2/galleries/`. This could lead to data loss and potentially allow for further exploitation.

Technical summary

The K2 frontend `item.checkin` task is vulnerable to an unauthenticated `sigProFolder` query parameter. This parameter is used directly in a `JFolder::delete()` call under `/media/k2/galleries/`. The vulnerability has a CVSS score of 6.5 and is classified as MEDIUM severity. The vulnerability is related to CWE-862. The affected product is K2 by Joomlaworks.

Defensive priority

High priority should be given to patching this vulnerability. Administrators should ensure that the patch is applied as soon as possible to prevent potential exploitation.

Recommended defensive actions

  • Apply the patch provided by Joomlaworks to fix the vulnerability.
  • Review and update the K2 configuration to ensure that the `item.checkin` task is properly secured.
  • Monitor the system for any suspicious activity related to the `sigProFolder` query parameter.
  • Consider implementing additional security measures to protect against potential exploitation.

Evidence notes

The vulnerability was published on June 25, 2026, and modified on June 28, 2026. The CVSS score is 6.5, and the severity is MEDIUM. The vulnerability is related to CWE-862. The affected product is K2 by Joomlaworks.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-48941 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-48941

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-48941 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-48941

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.