CVE-2026-57827PoC(rsjoomla / rsfiles\!)

HIGHCVSS 9.8 · CRITICAL

Exploitation observed; activity peaked at 5 mentions and remains active

Immediate actions

Patch rsjoomla rsfiles\! systems immediately
Assume compromise if assets are exposed
Hunt for exploitation attempts and persistence artifacts
Increase monitoring for publicly documented tradecraft

Recommended action window: Immediate (within 24h)

NVD description

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.

rsjoomla CVEs Back to dashboard

7.5/ 10 priority

Sources & remediation

Exploit / PoC references

https://mysites.guru/blog/rsfiles-unauthenticated-file-upload-rce/

Other references

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

Weakness type (CWE)

CWE-434

Priority

HIGH

Exploitation

ACTIVE

PoC

YES

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

rsfiles\!

Threat summary

Active exploitation appears in 3 classified signals
Public PoC and exploit tooling are both present
Patch or workaround signal is available
17 mentions across 7 observed days

What's happening

Active exploitation reported across 3 signals
Exploit tool or code specified in 6 signals
PoC mentioned or linked in 11 signals
Patch or workaround mentioned in 2 signals
Technical details provided in 9 signals
Disclosure: 3 classified signals
Peaked 4d ago at 5 mentions (2026-07-30); latest day: 1
17 total mentions across 7 days

Affected systems

Vendors

rsjoomla

Products

rsfiles\!

Deep dive

Activity timeline17 mentions / 7d

Signal classification6 categories

PoC

743.8%

Disclosure

318.8%

Patch

212.5%

Exploit

212.5%

Active Exploitation

16.3%

General

16.3%

Referenced assets11 URLs

By indicator

Classification over time

Date	Total	Labels

2026-07-11	3	Active Exploitation1Disclosure1Patch1
2026-07-12	1	Patch1
2026-07-30	5	Exploit1PoC4
2026-07-31	4	Disclosure1PoC3
2026-08-04	2	Exploit1General1
2026-08-18	1	Disclosure1

Full discourse17 posts

ThreatWire@ThreatWire_73d
PoC
🚨 A public PoC has been released for CVE-2026-57827 affecting the RSFiles extension for Joomla. The flaw allows unauthenticated file upload, potentially leading to full RCE. 🔗 https://github.com/shinthink/cve-2026-57827 #Joomla #RCE #CVE #CyberSecurity
Post summary
A public Proof of Concept has been released for CVE-2026-57827, demonstrating unauthenticated file upload that can lead to full remote code execution in the RSFiles Joomla extension.
019057283.8K
1.5K followersView on X
ɐpnH@AlAssaf_H72d
PoC
CVE-2026-57827 is a vulnerability in Joomla’s RSFiles! component before version 1.17.12 that allows attackers to upload and execute PHP files remotely. This can lead to code execution and potential security breaches. https://github.com/shinthink/cve-2026-57827
Post summary
Joomla RSFiles component is vulnerable to remote code execution via PHP uploads; a proof‑of‑concept is available on GitHub, but no active exploitation or patching information is provided.
09045142.1K
926 followersView on X
Rıdvan Yağlı@ridvanyagli72d
PoC
CVE-2026-57827, Joomla RSFiles (com_rsfiles) eklentisinde bulunan CVSS 9.8 (Kritik) puanlı bir kimlik doğrulama gerektirmeyen rastgele dosya yükleme açığıdır. 1.17.12'den önceki sürümleri etkiler ve uzaktan kod çalıştırmaya (RCE) yol açabilir. https://github.com/shinthink/cve-2026-57827
Post summary
CVE-2026-57827 is a critical file‑upload flaw in Joomla’s RSFiles plugin that bypasses authentication and enables remote code execution; a GitHub repository is provided that likely contains proof‑of‑concept exploit code.
0602392.3K
2.4K followersView on X
Clandestine@akaclandestine73d
PoC
GitHub - shinthink/CVE-2026-57827: CVE-2026-57827 — RSFiles! Joomla Component Unauthenticated File Upload RCE. Split-controller upload bypass. CVSS 9.8 | CWE-434 | com_rsfiles < 1.17.12 · GitHub https://github.com/shinthink/cve-2026-57827
Post summary
The linked GitHub repository details an unauthenticated file‑upload RCE in the RSFiles! Joomla component (vulnerable to versions <1.17.12) with a CVSS score of 9.8, offering a proof‑of‑concept exploiting a split‑controller upload bypass.
0301752.6K
64.8K followersView on X
Hack32@Hack32_71d
PoC
Advancing the post-exploitation of CVE-2026-57827. https://github.com/shinthink/CVE-2026-57827 https://t.co/USTyY31Mxn
Post summary
A GitHub repository is referenced to extend post‑exploitation for CVE‑2026‑57827, indicating the presence of a PoC, but no evidence of active exploitation or remediation is provided.
0201741.6K
828 followersView on X
dbugs@ptdbugs73d
Exploit
A PoC/exploit has been discovered for vulnerability CVE-2026-57827 PT ID: PT-2026-57425 Vendor: Joomla Product: RSFiles extension for Joomla (http://rsjoomla.com) Description: Joomla Extension - http://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. References: • https://dbugs.ptsecurity.com/vulnerability/PT-2026-57425 • https://github.com/shinthink/cve-2026-57827 #dbugs_vuln
Post summary
A PoC/exploit for CVE-2026-57827 has been published, enabling unauthenticated arbitrary file upload and full RCE in Joomla's RSFiles extension, with code available on GitHub.
0301431.1K
3.5K followersView on X
pdnuclei-bot@pdnuclei_bot54d
Disclosure
🚨 CVE-2026-57827 - critical 🚨 RSFiles! for Joomla - Arbitrary File Upload > RSFiles! (com_rsfiles) for Joomla < 1.17.12 allows unauthenticated arbitrary file upl... 👾 https://cloud.projectdiscovery.io/library/CVE-2026-57827 @pdnuclei #NucleiTemplates #cve
Post summary
The post announces CVE-2026-57827, a critical Joomla RSFiles vulnerability that permits unauthenticated arbitrary file uploads, and provides a link to a Nuclei template that probably serves as a PoC.
010123516
1.3K followersView on X
Hack32@Hack32_72d
PoC
From Scratch to Webshell: Exploiting CVE-2026-57827 in Joomla RSFiles! #CVE202657827 #CyberSecurity #BugBounty #RSFiles https://t.co/cJpB3F03za
Post summary
The tweet announces that the author has created a proof‑of‑concept exploit for Joomla RSFiles CVE‑2026‑57827 that results in a webshell, but no detailed exploit code, patch information, or active‑exploitation evidence is provided.
001812.4K
828 followersView on X
ExploitGrid@exploitgrid68d
General
🛡️ #ExploitGrid Daily #Threat Digest Critical Exploits disclosed today: EGE-GH-gXcrY61 ( CVE-2021-44228 ) EGE-GH-mlHKBE9 ( CVE-2021-44228 ) EGE-GH-UkC3bPM ( CVE-2026-57827 ) EGE-GH-kQvdrdy ( CVE-2021-21972 ) EGE-GH-UzPcxEL ( CVE-2023-33246 ) ..🧵👇
Post summary
The tweet lists several CVE identifiers but does not provide details on PoC, exploit code, active exploitation, patches, or technical aspects.
1101043
29 followersView on X
Upwind Security MDR@UpwindMDR92d
Patch
🚨Critical - Two Joomla extension file-upload RCEs disclosed (CVE-2026-57827 & CVE-2026-57828) Two popular Joomla download-manager extensions both have arbitrary file upload → RCE flaws (CWE-434). Their upload handlers fail to validate file types, letting an attacker upload a PHP web shell and fully take over the server. - RSFiles / RSJoomla Download Manager (CVE-2026-57827) - UNAUTHENTICATED, CVSS 10.0, and actively exploited in the wild. Affects 1.0–1.17.11. - Phoca Download (CVE-2026-57828) - authenticated, but only a registered account is needed (trivial where self-registration is on), CVSS 9.0. Affects 1.0–6.1.2. Both are internet-facing site-takeover bugs on a widely deployed CMS. If you run either extension, treat as urgent. 👉Patch RSFiles and Phoca Download to the vendor's fixed releases now, and hunt for unexpected files/web shells in upload dirs - especially for RSFiles, given active exploitation.
Post summary
The text announces two Joomla extension RCE vulnerabilities, highlights active exploitation for one, mandates urgent patching, and provides detailed technical information.
00020150
300 followersView on X
ExploitGrid@exploitgrid68d
Exploit
[EXPLOIT] EGE-GH-UkC3bPM [CRITICAL/PoC] Linked: CVE-2026-57827 rsfiles-CVE-2026-57827 🔗 https://exploitgrid.net/exploits/fb88009c-7bff-414b-9bc4-fcbf5b2b8a5f
Post summary
The post supplies a critical PoC and functional exploit for CVE‑2026‑57827 via an ExploitGrid link, but offers no patches, technical details, or evidence of live attacks.
1000041
29 followersView on X
ExploitGrid@exploitgrid72d
PoC
[EXPLOIT] EGE-GH-2hTfkzq [CRITICAL/PoC] Linked: CVE-2026-57827 CVE-2026-57827 🔗 https://exploitgrid.net/exploits/ff2728dd-cc29-4bfb-be12-44ab5273ed39
Post summary
The notice announces CVE‑2026‑57827 with a critical proof‑of‑concept and provides a link to exploit code on ExploitGrid, but offers no patch, technical details, or evidence of active exploitation.
1000053
29 followersView on X
ExploitGrid@exploitgrid72d
Disclosure
🛡️ #ExploitGrid Daily #Threat Digest Critical Exploits disclosed today: #EGE-GH-2hTfkzq ( CVE-2026-57827 ) EGE-GH-p5IA4H4 ( CVE-2026-57811 ) EGE-GH-uLGqWw2 ( CVE-2018-4013 ) EGE-GH-H7DtJPV ( CVE-2018-4013 ) EGE-GH-arkHFzA ( CVE-2021-44228 ) ..🧵👇
Post summary
The tweet merely lists critical CVE identifiers as newly disclosed exploits, providing no additional technical details, patches, or evidence of active exploitation.
1000050
29 followersView on X
DailyCVE@dailycve2d
🔴 Joomla RSFiles, Unauthenticated Arbitrary File Upload, #CVE-2026-57827 (Critical) -DC-Oct2026-2917 https://dailycve.com/joomla-rsfiles-unauthenticated-arbitrary-file-upload-cve-2026-57827-critical-dc-oct2026-2917/
0000028
239 followersView on X
SecAlerts@SecAlertsCo90d
Patch
🗂️ RSFiles (Joomla) has an unauthenticated file upload flaw letting attackers drop executable files and achieve full RCE. CVSS 10, actively exploited. Upgrade to 1.17.12 now. CVE-2026-57827 #Joomla #cybersecurity https://secalerts.co/vulnerability/CVE-2026-57827?utm_campaign=x https://t.co/o9j7fMJspR
Post summary
The RSFiles Joomla component suffers from an unauthenticated file‑upload flaw that can lead to full remote code execution; the CVE is actively exploited, so upgrading to version 1.17.12 is strongly advised.
00000136
858 followersView on X
MalwareObserver@MalwareObserver91d
Disclosure
🐛 VULNERABILITIES CVE Notify: 🚨 [CVE-2026-57827](https://mysites.guru/blog/rsfiles-unauthenticated-file-upload-rce/) The Joomla e... https://mysites.guru/blog/rsfiles-unauthenticated-file-upload-rce/ #CVE #ZeroDay #PatchManagement
Post summary
A Joomla component vulnerability, CVE‑2026‑57827, allows unauthenticated file upload leading to remote code execution; details are linked but no patch, tool, or exploitation evidence is provided.
0000049
10 followersView on X
VulDB 🛡@vuldb91d
Active Exploitation
Some increased actor activities are shown targeting rsjoomla RSFiles Plugin (CVE-2026-57827) https://vuldb.com/vuln/377784/cti
Post summary
The report highlights increased threat actor activity targeting CVE‑2026‑57827, suggesting the vulnerability is being exploited in the wild.
00000106
2.3K followersView on X

CPE platform detail1 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

1 of 1 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	rsjoomla	rsfiles\!	-	joomla\!	-

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What researchers are saying

CVE-2026-57827

ThreatWire[verified]@ThreatWire_PoC

A public Proof of Concept has been released for CVE-2026-57827, demonstrating unauthenticated file upload that can lead to full remote code execution in the RSFiles Joomla extension.

ɐpnH[verified]@AlAssaf_HPoC

Joomla RSFiles component is vulnerable to remote code execution via PHP uploads; a proof‑of‑concept is available on GitHub, but no active exploitation or patching information is provided.

Rıdvan Yağlı[verified]@ridvanyagliPoC

CVE-2026-57827 is a critical file‑upload flaw in Joomla’s RSFiles plugin that bypasses authentication and enables remote code execution; a GitHub repository is provided that likely contains proof‑of‑concept exploit code.

Clandestine[verified]@akaclandestinePoC

The linked GitHub repository details an unauthenticated file‑upload RCE in the RSFiles! Joomla component (vulnerable to versions <1.17.12) with a CVSS score of 9.8, offering a proof‑of‑concept exploiting a split‑controller upload bypass.

dbugs[verified]@ptdbugsExploit

A PoC/exploit for CVE-2026-57827 has been published, enabling unauthenticated arbitrary file upload and full RCE in Joomla's RSFiles extension, with code available on GitHub.

Upwind Security MDR[verified]@UpwindMDRPatch

The text announces two Joomla extension RCE vulnerabilities, highlights active exploitation for one, mandates urgent patching, and provides detailed technical information.

MalwareObserver[verified]@MalwareObserverDisclosure

A Joomla component vulnerability, CVE‑2026‑57827, allows unauthenticated file upload leading to remote code execution; details are linked but no patch, tool, or exploitation evidence is provided.

Hack32@Hack32_PoC

A GitHub repository is referenced to extend post‑exploitation for CVE‑2026‑57827, indicating the presence of a PoC, but no evidence of active exploitation or remediation is provided.