Critical· 10official fix available
CVE-2026-57827
The RSFiles Joomla extension prior to version 1.17.12 contains an unauthenticated arbitrary file upload vulnerability that allows attackers to upload executable files and achieve full remote code execution. This flaw is rated critical with a CVSS base score of 10.0. Upgrading to version 1.17.12 or later mitigates the issue.
publishedJul 11, 2026
last modifiedJul 23, 2026
sourcesNVD
severity · cvss
10
critical · how bad it is
exploitation · epss
<1%
33th percentile · chance of exploitation in 30 days
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →
auto-deletes from the system
counting…on Aug 23, 2026
An official fix is available, so this entry is kept for 30 days and then removed automatically.
01
Who is affected
rsjoomla rsfiles
02
Real-world impact
Full remote code execution via unauthenticated file upload.
03
Why this severity
CVSS 10.0 indicates the vulnerability is network‑reachable, low‑complexity, requires no privileges or user interaction, and impacts confidentiality, integrity, and availability at high levels.
04
What to do about it
official fix available
recommended steps
- 01Upgrade the RSFiles component to version 1.17.12 or later.
NVD description (indicates fix in version 1.17.12 or later)
05
Timeline
- Jul 11, 2026 · 24d agoPublishedDisclosed and added to the National Vulnerability Database.
- Jul 23, 2026 · 11d agoAdvisory updatedThe NVD record was last revised.
- Jul 24, 2026 · 11d agoOfficial fix availableA vendor patch or mitigation now exists — see the remediation steps above.
06
How it’s attacked
Attack vectorNetwork (remote)
Attack complexityLow
Attack requirementsNone
Privileges requiredNone
User interactionNone needed
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
07
References & advisories
- mysites.guru/blog/rsfiles-unauthenticate…exploitthird party advisory
- rsjoomla.com/joomla-extensions/joomla-do…product
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →