PatchTheCVECVE-2026-57827: Joomla Extension - rsjoomla.com - Unauthenticated file upload in RSFiles component < 1.17.12 - The Joomla exte
CVE-2026-57827 is a critical-severity flaw (CVSS 9.8) affecting rsfiles\!. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- Critical severity
- Public exploit reference
- CISA SSVC: automatable with total technical impact
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 2.3% (top 17%) |
| CISA exploited list | No |
| Weakness | CWE-434 |
| Published | 2026-07-11 |
| Last modified | 2026-10-25 |
Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Exact fixes by distribution
Public exploits and detection
Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.
- GitHub PoC: shinthink/CVE-2026-57827 (16 stars)
- GitHub PoC: Mohammad-008/rsfiles-CVE-2026-57827 (9 stars)
- GitHub PoC: jjkk123123/CVE-2026-57827 (1 stars)
- Write-up: mysites.guru/blog/rsfiles-unauthenticated-file-upload-rce/
- Nuclei scan template: RSFiles! for Joomla - Arbitrary File Upload
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-57827?
rsfiles\!: upgrade to 1.17.12. Exact commands for each OS are on this page.
Is CVE-2026-57827 being exploited?
CVE-2026-57827 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-57827 affect?
CVE-2026-57827 affects rsfiles\!. Severity is critical (CVSS 9.8). 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 R
How urgent is CVE-2026-57827?
Priority 68/100. Critical severity; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action