How severe is CVE-2025-67728?

CVE-2025-67728 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-2025-67728 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-67728?

CVE-2025-67728 affects Shaneisrael Fireshare. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-67728?

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-2025-67728 have an EU (EUVD) identifier?

Yes. CVE-2025-67728 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-203055.

When was CVE-2025-67728 published?

CVE-2025-67728 was published on 2025-12-12 and last updated on 2026-06-17.

CVE-2025-67728

CVE-2025-67728 is a critical-severity vulnerability in Shaneisrael Fireshare 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-77.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-203055
Weakness: CWE-77
Affected product: Shaneisrael Fireshare
Published: 2025-12-12
Last modified: 2026-06-17

Description

Fireshare facilitates self-hosted media and link sharing. Versions 1.2.30 and below allow an authenticated user, or unauthenticated user if the Public Uploads setting is enabled, to craft a malicious filename when uploading a video file. The malicious filename is then concatenated directly into a shell command, which can be used for uploading files to arbitrary directories via path traversal, or executing system commands for Remote Code Execution (RCE). This issue is fixed in version 1.3.0.

Frequently asked questions

What is CVE-2025-67728?: Fireshare facilitates self-hosted media and link sharing. Versions 1.2.30 and below allow an authenticated user, or unauthenticated user if the Public Uploads setting is enabled, to craft a malicious filename when uploading a video file. The malicious filename is then concatenated directly into a shell command, which can be used for uploading files to arbitrary directories via path traversal, or executing system commands for Remote Code Execution (RCE). This issue is fixed in version 1.3.0.
How severe is CVE-2025-67728?: CVE-2025-67728 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-2025-67728 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-67728?: CVE-2025-67728 affects Shaneisrael Fireshare. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-67728?: 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-2025-67728 have an EU (EUVD) identifier?: Yes. CVE-2025-67728 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-203055.
When was CVE-2025-67728 published?: CVE-2025-67728 was published on 2025-12-12 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:shaneisrael:fireshare:*:*:*:*:*:*:*:*

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