CVE-2026-57827

CRITICALPre-NVD 10.09.8▼
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-11. the CNA's CVSS baseline 10.0; sources differ by 0.2.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:joomla, epss, ghsa
Trending — 5 sources updated this week
10.0
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 10.0Exploit: NoneExposed: 0

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

The Joomla extension RSFiles is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE.

CVSS v3
10.0
EG Score
9.8(high)
EPSS
20.6%
KEV
Not listed

Published

July 11, 2026

Last Modified

July 15, 2026

Advisory Details (2)

Auto-updated Jul 15, 2026
⚠️ Active exploitation confirmed. No patch confirmed yet.
generic🔴 Active Exploitation

RSFiles! 1.17.12 File Upload RCE Fixed | mySites.guru

https://mysites.guru/blog/rsfiles-unauthenticated-file-upload-rce/
generic🔴 Active Exploitation

Joomla!® File and Download Manager - RSFiles!

https://www.rsjoomla.com/joomla-extensions/joomla-download-manager.html

Vendor Advisories for CVE-2026-57827(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 55× in last 7d / 55× 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 08:56 UTCEG score recompute
  2. 2026-07-15 08:56 UTCGHSA enrichment
  3. 2026-07-15 06:04 UTCMITRE cvelistV5CVSS v3 → 10
  4. 2026-07-15 04:46 UTCEG score recompute
  5. 2026-07-15 04:46 UTCGHSA enrichment
  6. 2026-07-15 02:00 UTCEPSS rescore
  7. 2026-07-15 02:00 UTCEPSS rescore
  8. 2026-07-15 00:39 UTCEG score recompute
  9. 2026-07-15 00:39 UTCGHSA enrichment
  10. 2026-07-14 20:26 UTCEG score recompute▼ 0.20
  11. 2026-07-14 20:26 UTCGHSA enrichment
  12. 2026-07-14 19:21 UTCNVD updateCVSS v3 → 9.8
  13. 2026-07-14 16:18 UTCEG score recompute
  14. 2026-07-14 16:18 UTCGHSA enrichment
  15. 2026-07-14 12:11 UTCEG score recompute
  16. 2026-07-14 12:11 UTCGHSA enrichment
  17. 2026-07-14 08:03 UTCEG score recompute
  18. 2026-07-14 08:03 UTCGHSA enrichment
  19. 2026-07-14 03:54 UTCEG score recompute
  20. 2026-07-14 03:54 UTCGHSA enrichment
  21. 2026-07-13 23:46 UTCEG score recompute
  22. 2026-07-13 23:46 UTCGHSA enrichment
  23. 2026-07-13 22:31 UTCEPSS rescore
  24. 2026-07-13 19:38 UTCEG score recompute
  25. 2026-07-13 19:38 UTCGHSA enrichment
Show 30 more
  1. 2026-07-13 15:30 UTCEG score recompute
  2. 2026-07-13 15:30 UTCGHSA enrichment
  3. 2026-07-13 11:21 UTCEG score recompute
  4. 2026-07-13 11:21 UTCGHSA enrichment
  5. 2026-07-13 07:13 UTCEG score recompute
  6. 2026-07-13 07:13 UTCGHSA enrichment
  7. 2026-07-13 06:13 UTCEPSS rescore
  8. 2026-07-13 06:13 UTCEPSS rescore
  9. 2026-07-13 03:04 UTCEG score recompute
  10. 2026-07-13 03:04 UTCGHSA enrichment
  11. 2026-07-12 22:56 UTCEG score recompute
  12. 2026-07-12 22:56 UTCGHSA enrichment
  13. 2026-07-12 18:48 UTCEG score recompute
  14. 2026-07-12 18:47 UTCGHSA enrichment
  15. 2026-07-12 14:39 UTCEG score recompute
  16. 2026-07-12 14:39 UTCGHSA enrichment
  17. 2026-07-12 10:31 UTCEG score recompute
  18. 2026-07-12 10:31 UTCGHSA enrichment
  19. 2026-07-12 06:23 UTCEG score recompute
  20. 2026-07-12 06:23 UTCGHSA enrichment
  21. 2026-07-12 02:15 UTCEG score recompute
  22. 2026-07-12 02:15 UTCGHSA enrichment
  23. 2026-07-11 22:07 UTCEG score recompute
  24. 2026-07-11 22:07 UTCGHSA enrichment
  25. 2026-07-11 17:59 UTCEG score recompute
  26. 2026-07-11 17:59 UTCGHSA enrichment
  27. 2026-07-11 13:51 UTCEG score recompute
  28. 2026-07-11 13:51 UTCGHSA enrichment
  29. 2026-07-11 09:43 UTCEG score recompute
  30. 2026-07-11 09:42 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-57827?
CVE-2026-57827 is a critical vulnerability published on July 11, 2026. The Joomla extension RSFiles is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE.
When was CVE-2026-57827 disclosed?
CVE-2026-57827 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-2026-57827 actively exploited?
CVE-2026-57827 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 20.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-57827?
CVE-2026-57827 has a CVSS v4.0 base score of 10.0 (CNA self-assessment; NVD's own analysis pending). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.8.
How do I remediate CVE-2026-57827?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-57827, 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-2026-57827

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