CVE-2026-78078

HIGHPre-NVD 8.98.9—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.9 under the CNA's CVSS (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 82% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: cna:joomla, epss
Trending — 3 sources updated this week
8.9EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.9Exploit: None knownExposed: 0

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

Joomla Extension - joomshaper.com - Privileged File Upload Bypass via Content Spoofing in Helix Ultimate < 2.2.10 - Image uploads previously validated only file extension and basic size parameters. Non-image files disguised with raster extensions could be uploaded. Added strict MIME verification and GD binary raster decoding (imagecreatefromstring) to reject invalid/malformed images fail-closed.

CVSS v3
8.9
EG Score
8.9(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity89% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
18%
KEV
Not listed

Published

August 31, 2026

Last Modified

September 1, 2026

Advisory Details (1)

Auto-updated Aug 31, 2026
No patch confirmed yet.
generic

Helix Ultimate - Free Universal Joomla Template for any Website - JoomShaper

https://www.joomshaper.com/joomla-templates/helixultimate

Vendor Advisories for CVE-2026-78078(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 24× in last 7d / 77× 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. 2026-09-21 03:35 UTCEG score recompute
  2. 2026-09-21 03:35 UTCGHSA enrichment
  3. 2026-09-20 20:16 UTCEPSS rescore
  4. 2026-09-20 14:27 UTCGHSA enrichment
  5. 2026-09-20 01:20 UTCEG score recompute
  6. 2026-09-20 01:20 UTCGHSA enrichment
  7. 2026-09-19 12:13 UTCGHSA enrichment
  8. 2026-09-18 23:04 UTCEG score recompute
  9. 2026-09-18 23:04 UTCGHSA enrichment
  10. 2026-09-18 19:28 UTCEPSS rescore
  11. 2026-09-18 09:55 UTCGHSA enrichment
  12. 2026-09-17 20:47 UTCEG score recompute
  13. 2026-09-17 20:47 UTCGHSA enrichment
  14. 2026-09-17 04:46 UTCGHSA enrichment
  15. 2026-09-16 15:38 UTCEG score recompute
  16. 2026-09-16 15:38 UTCGHSA enrichment
  17. 2026-09-16 14:08 UTCEPSS rescore
  18. 2026-09-16 05:15 UTCEPSS rescore
  19. 2026-09-16 02:26 UTCGHSA enrichment
  20. 2026-09-15 13:19 UTCEG score recompute
  21. 2026-09-15 13:19 UTCGHSA enrichment
  22. 2026-09-15 03:12 UTCEPSS rescore
  23. 2026-09-15 03:12 UTCEPSS rescore
  24. 2026-09-15 00:11 UTCGHSA enrichment
  25. 2026-09-14 11:04 UTCGHSA enrichment
Show 52 more
  1. 2026-09-13 21:57 UTCEG score recompute
  2. 2026-09-13 21:57 UTCGHSA enrichment
  3. 2026-09-13 08:50 UTCGHSA enrichment
  4. 2026-09-12 19:42 UTCEG score recompute
  5. 2026-09-12 19:42 UTCGHSA enrichment
  6. 2026-09-12 06:34 UTCGHSA enrichment
  7. 2026-09-11 17:27 UTCEG score recompute
  8. 2026-09-11 17:27 UTCGHSA enrichment
  9. 2026-09-11 14:53 UTCEPSS rescore
  10. 2026-09-11 14:53 UTCEPSS rescore
  11. 2026-09-11 04:07 UTCGHSA enrichment
  12. 2026-09-10 15:00 UTCEG score recompute
  13. 2026-09-10 14:59 UTCGHSA enrichment
  14. 2026-09-10 09:35 UTCEPSS rescore
  15. 2026-09-10 01:51 UTCGHSA enrichment
  16. 2026-09-09 12:43 UTCGHSA enrichment
  17. 2026-09-08 23:29 UTCEG score recompute
  18. 2026-09-08 23:29 UTCGHSA enrichment
  19. 2026-09-08 22:01 UTCEPSS rescore
  20. 2026-09-08 04:16 UTCEG score recompute
  21. 2026-09-08 04:16 UTCGHSA enrichment
  22. 2026-09-07 15:08 UTCGHSA enrichment
  23. 2026-09-07 02:01 UTCEG score recompute
  24. 2026-09-07 02:01 UTCGHSA enrichment
  25. 2026-09-06 13:48 UTCEPSS rescore
  26. 2026-09-06 12:52 UTCGHSA enrichment
  27. 2026-09-05 23:44 UTCEG score recompute
  28. 2026-09-05 23:44 UTCGHSA enrichment
  29. 2026-09-05 10:37 UTCGHSA enrichment
  30. 2026-09-04 21:25 UTCEG score recompute
  31. 2026-09-04 21:24 UTCGHSA enrichment
  32. 2026-09-04 08:15 UTCEG score recompute
  33. 2026-09-04 08:15 UTCGHSA enrichment
  34. 2026-09-04 05:07 UTCEPSS rescore
  35. 2026-09-03 19:05 UTCGHSA enrichment
  36. 2026-09-03 05:57 UTCGHSA enrichment
  37. 2026-09-02 16:49 UTCEG score recompute
  38. 2026-09-02 16:49 UTCGHSA enrichment
  39. 2026-09-02 14:12 UTCEPSS rescore
  40. 2026-09-02 03:40 UTCGHSA enrichment
  41. 2026-09-01 14:29 UTCEG score recompute
  42. 2026-09-01 14:29 UTCGHSA enrichment
  43. 2026-09-01 13:54 UTCEPSS rescore
  44. 2026-09-01 13:53 UTCEG score recompute
  45. 2026-09-01 13:53 UTCGHSA enrichment
  46. 2026-09-01 08:53 UTCGHSA enrichment
  47. 2026-08-31 19:41 UTCGHSA enrichment
  48. 2026-08-31 15:22 UTCEG score recompute
  49. 2026-08-31 14:42 UTCEG score recompute
  50. 2026-08-31 14:25 UTCEG score recompute
  51. 2026-08-31 14:06 UTCEG score recompute
  52. 2026-08-31 14:04 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-78078?
CVE-2026-78078 is a high vulnerability published on August 31, 2026. Joomla Extension - joomshaper.com - Privileged File Upload Bypass via Content Spoofing in Helix Ultimate < 2.2.10 - Image uploads previously validated only file extension and basic size parameters. Non-image files disguised with raster extensions could be uploaded. Added strict MIME verification…
When was CVE-2026-78078 disclosed?
CVE-2026-78078 was first published in the National Vulnerability Database on August 31, 2026, with the most recent update on September 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-78078 actively exploited?
CVE-2026-78078 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 82.3% of all scored CVEs.
What is the CVSS score of CVE-2026-78078?
CVE-2026-78078 has a CVSS v4.0 base score of 8.9 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-78078?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-78078, 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-2026-78078

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