CVE-2026-57828

CRITICALPre-NVD 9.09.0—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.0 under the CNA's CVSS (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 83% 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 — 5 sources updated this week
9.0
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.0Exploit: NoneExposed: 0

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

The Joomla extension Phoca Downloads is vulnerable to an authenticated arbitrary file upload that allows registered users uploading executable files and leads to full RCE.

CVSS v3
9.0
EG Score
9.0(medium)
EPSS
17.0%
KEV
Not listed

Published

July 11, 2026

Last Modified

July 15, 2026

Advisory Details (2)

Auto-updated Jul 11, 2026
⚠️ Active exploitation confirmed. No patch confirmed yet.
generic

Phoca Download

https://www.phoca.cz/phocadownload
generic🔴 Active Exploitation

Phoca Download 6.1.3 Fixes Authenticated RCE | mySites.guru

https://mysites.guru/blog/phoca-download-authenticated-file-upload-rce/

Vendor Advisories for CVE-2026-57828(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 57× in last 7d / 57× 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. 2026-07-15 09:18 UTCEG score recompute▲ 0.20
  2. 2026-07-15 09:17 UTCGHSA enrichment
  3. 2026-07-15 06:04 UTCMITRE cvelistV5CVSS v3 → 9 · severity → CRITICAL
  4. 2026-07-15 02:00 UTCEPSS rescore
  5. 2026-07-15 02:00 UTCEPSS rescore
  6. 2026-07-14 21:49 UTCEG score recompute▼ 0.20
  7. 2026-07-14 21:49 UTCGHSA enrichment
  8. 2026-07-14 19:21 UTCNVD updateCVSS v3 → 8.8 · severity → HIGH
  9. 2026-07-14 18:10 UTCEG score recompute
  10. 2026-07-14 18:10 UTCGHSA enrichment
  11. 2026-07-14 14:31 UTCEG score recompute
  12. 2026-07-14 14:31 UTCGHSA enrichment
  13. 2026-07-14 10:51 UTCEG score recompute
  14. 2026-07-14 10:51 UTCGHSA enrichment
  15. 2026-07-14 07:12 UTCEG score recompute
  16. 2026-07-14 07:12 UTCGHSA enrichment
  17. 2026-07-14 03:33 UTCEG score recompute
  18. 2026-07-14 03:33 UTCGHSA enrichment
  19. 2026-07-13 23:54 UTCEG score recompute
  20. 2026-07-13 23:54 UTCGHSA enrichment
  21. 2026-07-13 22:31 UTCEPSS rescore
  22. 2026-07-13 20:15 UTCEG score recompute
  23. 2026-07-13 20:15 UTCGHSA enrichment
  24. 2026-07-13 16:35 UTCEG score recompute
  25. 2026-07-13 16:35 UTCGHSA enrichment
Show 32 more
  1. 2026-07-13 12:54 UTCEG score recompute
  2. 2026-07-13 12:54 UTCGHSA enrichment
  3. 2026-07-13 09:15 UTCEG score recompute
  4. 2026-07-13 09:14 UTCGHSA enrichment
  5. 2026-07-13 06:13 UTCEPSS rescore
  6. 2026-07-13 06:13 UTCEPSS rescore
  7. 2026-07-13 05:34 UTCEG score recompute
  8. 2026-07-13 05:34 UTCGHSA enrichment
  9. 2026-07-13 01:55 UTCEG score recompute
  10. 2026-07-13 01:55 UTCGHSA enrichment
  11. 2026-07-12 22:16 UTCEG score recompute
  12. 2026-07-12 22:16 UTCGHSA enrichment
  13. 2026-07-12 18:37 UTCEG score recompute
  14. 2026-07-12 18:37 UTCGHSA enrichment
  15. 2026-07-12 14:58 UTCEG score recompute
  16. 2026-07-12 14:58 UTCGHSA enrichment
  17. 2026-07-12 11:19 UTCEG score recompute
  18. 2026-07-12 11:19 UTCGHSA enrichment
  19. 2026-07-12 07:40 UTCEG score recompute
  20. 2026-07-12 07:40 UTCGHSA enrichment
  21. 2026-07-12 04:01 UTCEG score recompute
  22. 2026-07-12 04:00 UTCGHSA enrichment
  23. 2026-07-12 00:21 UTCEG score recompute
  24. 2026-07-12 00:21 UTCGHSA enrichment
  25. 2026-07-11 20:40 UTCEG score recompute
  26. 2026-07-11 20:40 UTCGHSA enrichment
  27. 2026-07-11 17:01 UTCEG score recompute
  28. 2026-07-11 17:01 UTCGHSA enrichment
  29. 2026-07-11 13:22 UTCEG score recompute
  30. 2026-07-11 13:22 UTCGHSA enrichment
  31. 2026-07-11 09:43 UTCEG score recompute
  32. 2026-07-11 09:42 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-57828?
CVE-2026-57828 is a critical vulnerability published on July 11, 2026. The Joomla extension Phoca Downloads is vulnerable to an authenticated arbitrary file upload that allows registered users uploading executable files and leads to full RCE.
When was CVE-2026-57828 disclosed?
CVE-2026-57828 was first published in the National Vulnerability Database on July 11, 2026, with the most recent update on July 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-57828 actively exploited?
CVE-2026-57828 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 17.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-57828?
CVE-2026-57828 has a CVSS v4.0 base score of 9.0 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-57828?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-57828, 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-2026-57828

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