CVE-2026-48940

LOWPre-NVD 3.43.4—
EchelonGraph scoreHIGH confidence

Score 3.4 from GitHub Security Advisory (severity: LOW) published 2026-06-25. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 3.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
3.4
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 3.4Exploit: NoneExposed: 0

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

A Joomla user with K2 "create item" rights (Author tier by default) can submit an article whose embedVideo POST field contains a raw `` tag; K2 stores it verbatim and renders it unescaped to any visitor of the article page.

CVSS v3
3.4
EG Score
3.4(high)
EPSS
6.3%
KEV
Not listed

Published

June 25, 2026

Last Modified

June 28, 2026

References (1)

Vendor Advisories for CVE-2026-48940(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 12× in last 7d / 22× 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. 2026-07-07 06:00 UTCEG score recompute
  2. 2026-07-07 06:00 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 02:23 UTCEPSS rescore
  5. 2026-07-05 02:30 UTCEPSS rescore
  6. 2026-07-04 08:57 UTCEG score recompute
  7. 2026-07-04 08:56 UTCGHSA enrichment
  8. 2026-07-04 06:31 UTCEPSS rescore
  9. 2026-07-01 15:07 UTCEPSS rescore
  10. 2026-07-01 11:55 UTCEG score recompute
  11. 2026-07-01 11:55 UTCGHSA enrichment
  12. 2026-06-30 23:22 UTCEPSS rescore
  13. 2026-06-29 14:06 UTCEPSS rescore
  14. 2026-06-29 14:06 UTCEPSS rescore
  15. 2026-06-28 14:54 UTCEG score recompute▲ 3.40
  16. 2026-06-28 14:54 UTCGHSA enrichment
  17. 2026-06-28 04:56 UTCEPSS rescore
  18. 2026-06-28 04:56 UTCEPSS rescore
  19. 2026-06-27 03:08 UTCEPSS rescore
  20. 2026-06-25 19:49 UTCNVD updateCVSS v3 → 3.4 · severity → LOW
  21. 2026-06-25 17:53 UTCEG score recompute
  22. 2026-06-25 17:48 UTCNVD updatefirst tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-48940?
CVE-2026-48940 is a low vulnerability published on June 25, 2026. A Joomla user with K2 "create item" rights (Author tier by default) can submit an article whose embedVideo POST field contains a raw <script> tag; K2 stores it verbatim and renders it unescaped to any visitor of the article page.
When was CVE-2026-48940 disclosed?
CVE-2026-48940 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-2026-48940 actively exploited?
CVE-2026-48940 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 6.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-48940?
CVE-2026-48940 has a CVSS v3.1 base score of 3.4 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-48940?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-48940, 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-2026-48940

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