CVE-2026-57827

Joomla Extension - rsjoomla.com - Unauthenticated file upload in RSFiles component < 1.17.12 - The Joomla extension RSFiles is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE.

CVSS v4.0

10.0 CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:X/V:X/RE:X/U:Red

CVSS v3.1

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

2.33% chance of exploitation in the next 30 days, 82th percentile

Nuclei

critical · CWE-434

Published

2026-07-11

Updated

2026-08-12

Proof-of-concept exploits (5)

• shinthink/CVE-2026-5782715★ · 2026-07-29
• Mohammad-008/rsfiles-CVE-2026-578279★ · 2026-08-03
• Candisexterior171/CVE-2026-578270★ · 2026-08-31
• jjkk123123/CVE-2026-578271★ · 2026-08-06
• g0d150ne/CVE_2026_578270★ · 2026-08-10

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-57827.yaml

References

• CVE Record
• NVD entry

Related

• CVE-2025-32044
• CVE-2026-13001
• CVE-2026-14894
• CVE-2026-15158
• CVE-2026-15282
• CVE-2026-3891