How severe is CVE-2023-4480?

CVE-2023-4480 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.

Is CVE-2023-4480 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-2023-4480?

CVE-2023-4480 affects Php-fusion Phpfusion. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-4480?

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

When was CVE-2023-4480 published?

CVE-2023-4480 was published on 2023-09-05 and last updated on 2026-06-17.

CVE-2023-4480

CVE-2023-4480 is a medium-severity vulnerability in Php-fusion Phpfusion with a CVSS 3.x base score of 5.5. 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-22.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Php-fusion Phpfusion
Published: 2023-09-05
Last modified: 2026-06-17

Description

Due to an out-of-date dependency in the “Fusion File Manager” component accessible through the admin panel, an attacker can send a crafted request that allows them to read the contents of files on the system accessible within the privileges of the running process. Additionally, they may write files to arbitrary locations, provided the files pass the application’s mime-type and file extension validation.

Frequently asked questions

What is CVE-2023-4480?: Due to an out-of-date dependency in the “Fusion File Manager” component accessible through the admin panel, an attacker can send a crafted request that allows them to read the contents of files on the system accessible within the privileges of the running process. Additionally, they may write files to arbitrary locations, provided the files pass the application’s mime-type and file extension validation.
How severe is CVE-2023-4480?: CVE-2023-4480 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.
Is CVE-2023-4480 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-2023-4480?: CVE-2023-4480 affects Php-fusion Phpfusion. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-4480?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-4480 published?: CVE-2023-4480 was published on 2023-09-05 and last updated on 2026-06-17.

References

https://www.synopsys.com/blogs/software-security/cyrc-vulnerability-advisory-cve-2023-2453/

Affected products (1)

cpe:2.3:a:php-fusion:phpfusion:*:*:*:*:*:*:*:*

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