How severe is CVE-2026-26272?

CVE-2026-26272 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-26272 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-26272?

CVE-2026-26272 affects Sysadminsmedia Homebox. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-26272?

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

Does CVE-2026-26272 have an EU (EUVD) identifier?

Yes. CVE-2026-26272 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9333.

When was CVE-2026-26272 published?

CVE-2026-26272 was published on 2026-03-03 and last updated on 2026-06-17.

CVE-2026-26272

CVE-2026-26272 is a medium-severity vulnerability in Sysadminsmedia Homebox with a CVSS 3.x base score of 4.6. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 4.6)
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-9333
Weakness: CWE-79
Affected product: Sysadminsmedia Homebox
Published: 2026-03-03
Last modified: 2026-06-17

Description

HomeBox is a home inventory and organization system. Prior to 0.24.0-rc.1, a stored cross-site scripting (XSS) vulnerability exists in the item attachment upload functionality. The application does not properly validate or restrict uploaded file types, allowing an authenticated user to upload malicious HTML or SVG files containing executable JavaScript (also, potentially other formats that render scripts). Uploaded attachments are accessible via direct links. When a user accesses such a file in their browser, the embedded JavaScript executes in the context of the application's origin. This vulnerability is fixed in 0.24.0-rc.1.

Frequently asked questions

What is CVE-2026-26272?: HomeBox is a home inventory and organization system. Prior to 0.24.0-rc.1, a stored cross-site scripting (XSS) vulnerability exists in the item attachment upload functionality. The application does not properly validate or restrict uploaded file types, allowing an authenticated user to upload malicious HTML or SVG files containing executable JavaScript (also, potentially other formats that render scripts). Uploaded attachments are accessible via direct links. When a user accesses such a file in their browser, the embedded JavaScript executes in the context of the application's origin. This vulnerability is fixed in 0.24.0-rc.1.
How severe is CVE-2026-26272?: CVE-2026-26272 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-26272 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-26272?: CVE-2026-26272 affects Sysadminsmedia Homebox. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-26272?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-26272 have an EU (EUVD) identifier?: Yes. CVE-2026-26272 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9333.
When was CVE-2026-26272 published?: CVE-2026-26272 was published on 2026-03-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sysadminsmedia:homebox:*:*:*:*:*:*:*:*

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