How severe is CVE-2026-28274?

CVE-2026-28274 has a CVSS 3.x base score of 8.7, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-28274 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-28274?

CVE-2026-28274 affects Morelitea Initiative. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-28274?

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

Does CVE-2026-28274 have an EU (EUVD) identifier?

Yes. CVE-2026-28274 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8919.

When was CVE-2026-28274 published?

CVE-2026-28274 was published on 2026-02-26 and last updated on 2026-06-17.

CVE-2026-28274

CVE-2026-28274 is a high-severity vulnerability in Morelitea Initiative with a CVSS 3.x base score of 8.7. 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: High (CVSS 3.x base score 8.7)
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-8919
Weakness: CWE-79
Affected product: Morelitea Initiative
Published: 2026-02-26
Last modified: 2026-06-17

Description

Initiative is a self-hosted project management platform. Versions of the application prior to 0.32.4 are vulnerable to Stored Cross-Site Scripting (XSS) in the document upload functionality. Any user with upload permissions within the "Initiatives" section can upload a malicious `.html` or `.htm` file as a document. Because the uploaded HTML file is served under the application's origin without proper sandboxing, the embedded JavaScript executes in the context of the application. As a result, authentication tokens, session cookies, or other sensitive data can be exfiltrated to an attacker-controlled server. Additionally, since the uploaded file is hosted under the application's domain, simply sharing the direct file link may result in execution of the malicious script when accessed. Version 0.32.4 fixes the issue.

Frequently asked questions

What is CVE-2026-28274?: Initiative is a self-hosted project management platform. Versions of the application prior to 0.32.4 are vulnerable to Stored Cross-Site Scripting (XSS) in the document upload functionality. Any user with upload permissions within the "Initiatives" section can upload a malicious `.html` or `.htm` file as a document. Because the uploaded HTML file is served under the application's origin without proper sandboxing, the embedded JavaScript executes in the context of the application. As a result, authentication tokens, session cookies, or other sensitive data can be exfiltrated to an attacker-controlled server. Additionally, since the uploaded file is hosted under the application's domain, simply sharing the direct file link may result in execution of the malicious script when accessed. Version 0.32.4 fixes the issue.
How severe is CVE-2026-28274?: CVE-2026-28274 has a CVSS 3.x base score of 8.7, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-28274 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-28274?: CVE-2026-28274 affects Morelitea Initiative. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-28274?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-28274 have an EU (EUVD) identifier?: Yes. CVE-2026-28274 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8919.
When was CVE-2026-28274 published?: CVE-2026-28274 was published on 2026-02-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:morelitea:initiative:*:*:*:*:*:*:*:*

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CVE-2026-28275 — High (CVSS 8.1): Initiative is a self-hosted project management platform. Versions of the application prior to 0.32.4 do not invalidate…
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