How severe is CVE-2026-48939?

CVE-2026-48939 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-48939 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-48939?

CVE-2026-48939 affects Joomlic Icagenda. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-48939?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-48939 have an EU (EUVD) identifier?

Yes. CVE-2026-48939 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38109.

When was CVE-2026-48939 published?

CVE-2026-48939 was published on 2026-06-20 and last updated on 2026-07-05.

CVE-2026-48939

CVE-2026-48939 is a critical-severity vulnerability in Joomlic Icagenda with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-434.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 10.0
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-38109
Weakness: CWE-434
Affected product: Joomlic Icagenda
Published: 2026-06-20
Last modified: 2026-07-05

Description

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.

Frequently asked questions

What is CVE-2026-48939?: 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.
How severe is CVE-2026-48939?: CVE-2026-48939 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-48939 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-48939?: CVE-2026-48939 affects Joomlic Icagenda. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-48939?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-48939 have an EU (EUVD) identifier?: Yes. CVE-2026-48939 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38109.
When was CVE-2026-48939 published?: CVE-2026-48939 was published on 2026-06-20 and last updated on 2026-07-05.

References

Affected products (1)

cpe:2.3:a:joomlic:icagenda:*:*:*:*:-:joomla\!:*:*

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