How severe is CVE-2025-65778?

CVE-2025-65778 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2025-65778 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-65778?

CVE-2025-65778 affects Wekan Project Wekan. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-65778?

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-2025-65778 have an EU (EUVD) identifier?

Yes. CVE-2025-65778 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-203374.

When was CVE-2025-65778 published?

CVE-2025-65778 was published on 2025-12-15 and last updated on 2026-06-17.

CVE-2025-65778

CVE-2025-65778 is a high-severity vulnerability in Wekan Project Wekan with a CVSS 3.x base score of 8.1. 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 8.1)
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-203374
Weakness: CWE-79
Affected product: Wekan Project Wekan
Published: 2025-12-15
Last modified: 2026-06-17

Description

An issue was discovered in Wekan The Open Source kanban board system up to version 18.15, fixed in 18.16. Uploaded attachments can be served with attacker-controlled Content-Type (text/html), allowing execution of attacker-supplied HTML/JS in the application's origin and enabling session/token theft and CSRF actions.

Frequently asked questions

What is CVE-2025-65778?: An issue was discovered in Wekan The Open Source kanban board system up to version 18.15, fixed in 18.16. Uploaded attachments can be served with attacker-controlled Content-Type (text/html), allowing execution of attacker-supplied HTML/JS in the application's origin and enabling session/token theft and CSRF actions.
How severe is CVE-2025-65778?: CVE-2025-65778 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2025-65778 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-65778?: CVE-2025-65778 affects Wekan Project Wekan. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-65778?: 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-2025-65778 have an EU (EUVD) identifier?: Yes. CVE-2025-65778 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-203374.
When was CVE-2025-65778 published?: CVE-2025-65778 was published on 2025-12-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:wekan_project:wekan:*:*:*:*:*:*:*:*

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