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CVE-2026-48939

Joomla Extension - icagenda.com - Remote Code Execution in iCaganda extension for Joomla < 4.0.8/3.9.15

10.0 CriticalIn KEVPublic exploit

A vulnerability in the iCagenda extension for Joomla allows the upload of arbitrary files in the file attachment feature, ultimately resulting in PHP code upload and execution.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

20.1%Up 19.7 points since Jun 23, 2026
90%50%10%1%

What each source reports

CVE List Score used 10.0

Joomla Extension - icagenda.com - Remote Code Execution in iCaganda extension for Joomla < 4.0.8/3.9.15

A vulnerability in the iCagenda extension for Joomla allows the upload of arbitrary files in the file attachment feature, ultimately resulting in PHP code upload and execution.

Record
CVE-2026-48939
CVSS 4.0
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/AU:Y/U:Red
Weakness
CWE-434
Updated
2026-11-02
EUVDEUVD-2026-38109 10.0

A vulnerability in the iCagenda extension for Joomla allows the upload of arbitrary files in the file attachment feature, ultimately resulting in PHP code upload and execution.

Record
EUVD-2026-38109
CVSS 4.0
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/AU:Y/U:Red
Updated
2026-11-02
GitHub AdvisoriesGHSA-4rh3-rmh3-hv6h 10.0

A vulnerability in the iCagenda extension for Joomla allows the upload of arbitrary files in the...

A vulnerability in the iCagenda extension for Joomla allows the upload of arbitrary files in the file attachment feature, ultimately resulting in PHP code upload and execution.

Record
GHSA-4rh3-rmh3-hv6h
CVSS 4.0
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 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-284, CWE-434
Updated
2026-11-02
CISA KEV No score

iCagenda Unrestricted Upload of File with Dangerous Type Vulnerability

iCagenda contains an unrestricted upload of file with dangerous type vulnerability that allows the upload of arbitrary files in the file attachment feature, ultimately resulting in PHP code upload and execution.

Record
CVE-2026-48939
Weakness
CWE-434
Updated
2026-11-02
NVD 10.0

A vulnerability in the iCagenda extension for Joomla allows the upload of arbitrary files in the file attachment feature, ultimately resulting in PHP code upload and execution.

Record
CVE-2026-48939
CVSS 4.0
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 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-434
Updated
2026-11-02

Affected products

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
PoC in GitHubPolosss/By-Poloss..-..CVE-2026-489392026-06-29
PoC in GitHubshinthink/CVE-2026-489392026-07-05
PoC in GitHubChiefYoru/CVE-2026-48939_PoC2026-07-18
NucleiJoomla iCagenda < 3.9.10 - Unauthenticated Arbitrary File Upload RCE

History

History
RecordedChangedSources
exploitation, exploits
first indexedCVE List, EUVD, GitHub Advisories, CISA KEV, Nuclei, NVD, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-48939 is a critical vulnerability (CVSS 10.0) in Icagenda, published June 20, 2026. CISA lists it as known to be exploited, since July 10, 2026. EUVD reports exploitation since July 10, 2026. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 20.1%, the 97th percentile. No source names a fixed version.

References

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