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CVE-2026-48939

89
FAUCET Score

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.

First published: Jun 20, 2026Last modified: Jul 5, 2026

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.2.1, < 3.9.15CPE matchmatch criteria
cpe:2.3:a:joomlic:icagenda:*:*:*:*:-:joomla\!:*:*
>= 4.0.0, < 4.0.8CPE matchmatch criteria
cpe:2.3:a:joomlic:icagenda:*:*:*:*:-:joomla\!:*:*

CVSS Data

CVSS version used by this source: 4.0

10.0CRITICAL

CVSS: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

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
HIGH
SS Confidentiality
HIGH
SS Integrity
HIGH
SS Availability
HIGH
Exploit Maturity
ATTACKED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
24.35%
Probability of exploitation in next 30 days
EPSS Percentile
97.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
Added to KEV · Jul 10, 2026
This CVE's current EPSS score of 0.2435 is in the 94th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / Polosss/By-Poloss..-..CVE-2026-48939
ExploitThird Party Advisory
mysites.guru / blog/icagenda-zero-day-file-upload-rce
Third Party Advisory
cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
icagenda.com / docs/changelog/icagenda-3-9-15
Release Notes
icagenda.com / docs/changelog/icagenda-4-0-8
Release Notes
icagenda.com
Product