CVE-2026-48943

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreHIGH confidence

Score 6.5 from GitHub Security Advisory published 2026-06-25. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
6.5
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.5Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

K2 ≤ 2.24 contains a mass-assignment defect in the K2 system user plugin plg_user_k2. A Registered Joomla user, by including the field K2UserForm=1 in a standard com_users profile.save POST, can write arbitrary values into the notes, image, and plugins columns of their own row in the #__k2_users table — none of which are exposed by the K2 frontend profile-edit form.

CVSS v3
6.5
EG Score
6.5(high)
EPSS
7.9%
KEV
Not listed

Published

June 25, 2026

Last Modified

June 28, 2026

Advisory Details (1)

Auto-updated Jun 25, 2026
No patch confirmed yet.
generic

K2 | The powerful content extension for Joomla! developed by JoomlaWorks

https://www.getk2.org/

Vendor Advisories for CVE-2026-48943(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 19× in last 7d / 32× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-06 09:49 UTCEG score recompute
  3. 2026-07-06 09:49 UTCGHSA enrichment
  4. 2026-07-05 10:37 UTCEG score recompute
  5. 2026-07-05 10:37 UTCGHSA enrichment
  6. 2026-07-05 02:30 UTCEPSS rescore
  7. 2026-07-04 11:25 UTCEG score recompute
  8. 2026-07-04 11:25 UTCGHSA enrichment
  9. 2026-07-04 06:31 UTCEPSS rescore
  10. 2026-07-03 12:15 UTCEG score recompute
  11. 2026-07-03 12:15 UTCGHSA enrichment
  12. 2026-07-02 12:51 UTCEG score recompute
  13. 2026-07-02 12:51 UTCGHSA enrichment
  14. 2026-07-01 15:07 UTCEPSS rescore
  15. 2026-07-01 13:42 UTCEG score recompute
  16. 2026-07-01 13:41 UTCGHSA enrichment
  17. 2026-06-30 23:22 UTCEPSS rescore
  18. 2026-06-30 14:31 UTCEG score recompute
  19. 2026-06-30 14:30 UTCGHSA enrichment
  20. 2026-06-29 15:19 UTCEG score recompute
  21. 2026-06-29 15:19 UTCGHSA enrichment
  22. 2026-06-29 14:06 UTCEPSS rescore
  23. 2026-06-29 14:06 UTCEPSS rescore
  24. 2026-06-28 16:04 UTCEG score recompute▲ 6.50
  25. 2026-06-28 16:04 UTCGHSA enrichment
Show 7 more
  1. 2026-06-28 14:07 UTCEPSS rescore
  2. 2026-06-28 04:56 UTCEPSS rescore
  3. 2026-06-28 04:56 UTCEPSS rescore
  4. 2026-06-27 03:08 UTCEPSS rescore
  5. 2026-06-25 19:49 UTCNVD updateCVSS v3 → 6.5 · severity → MEDIUM
  6. 2026-06-25 17:53 UTCEG score recompute
  7. 2026-06-25 17:48 UTCNVD updatefirst tracked

Frequently asked(5)

What is CVE-2026-48943?
CVE-2026-48943 is a medium vulnerability published on June 25, 2026. K2 ≤ 2.24 contains a mass-assignment defect in the K2 system user plugin plguserk2. A Registered Joomla user, by including the field K2UserForm=1 in a standard comusers profile.save POST, can write arbitrary values into the notes, image, and plugins columns of their own row in the #k2users table —…
When was CVE-2026-48943 disclosed?
CVE-2026-48943 was first published in the National Vulnerability Database on June 25, 2026, with the most recent update on June 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-48943 actively exploited?
CVE-2026-48943 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 7.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-48943?
CVE-2026-48943 has a CVSS v3.1 base score of 6.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-48943?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-48943, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-48943

Explore →

Is Your Infrastructure Affected by CVE-2026-48943?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs