How severe is CVE-2026-48947?

CVE-2026-48947 has a CVSS 4.0 base score of 6.4, rated medium severity.

Is CVE-2026-48947 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-48947?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-48947 published?

CVE-2026-48947 was published on 2026-07-07 and last updated on 2026-07-08.

CVE-2026-48947

CVE-2026-48947 is a medium-severity vulnerability with a CVSS 4.0 base score of 6.4. 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-284.

Key facts

Severity: Medium (CVSS 4.0 base score 6.4)
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Published: 2026-07-07
Last modified: 2026-07-08

Description

An improper access check allows privileged users to overwrite media files without editing permissions.

Frequently asked questions

What is CVE-2026-48947?: An improper access check allows privileged users to overwrite media files without editing permissions.
How severe is CVE-2026-48947?: CVE-2026-48947 has a CVSS 4.0 base score of 6.4, rated medium severity.
Is CVE-2026-48947 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-48947?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-48947 published?: CVE-2026-48947 was published on 2026-07-07 and last updated on 2026-07-08.

References

https://developer.joomla.org/security-centre/1055-20260701-core-incorrect-access-control-in-com-media-webservice-endpoints.html

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