How severe is CVE-2025-68663?

CVE-2025-68663 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2025-68663 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-68663?

CVE-2025-68663 affects Getoutline Outline. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-68663?

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

Does CVE-2025-68663 have an EU (EUVD) identifier?

Yes. CVE-2025-68663 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-207013.

When was CVE-2025-68663 published?

CVE-2025-68663 was published on 2026-02-11 and last updated on 2026-06-17.

CVE-2025-68663

CVE-2025-68663 is a medium-severity vulnerability in Getoutline Outline with a CVSS 3.x base score of 5.3. 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-287.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v4: 6.9
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-207013
Weakness: CWE-287
Affected product: Getoutline Outline
Published: 2026-02-11
Last modified: 2026-06-17

Description

Outline is a service that allows for collaborative documentation. Prior to 1.1.0, a vulnerability was found in Outline's WebSocket authentication mechanism that allows suspended users to maintain or establish real-time WebSocket connections and continue receiving sensitive operational updates after their account has been suspended. This vulnerability is fixed in 1.1.0.

Frequently asked questions

What is CVE-2025-68663?: Outline is a service that allows for collaborative documentation. Prior to 1.1.0, a vulnerability was found in Outline's WebSocket authentication mechanism that allows suspended users to maintain or establish real-time WebSocket connections and continue receiving sensitive operational updates after their account has been suspended. This vulnerability is fixed in 1.1.0.
How severe is CVE-2025-68663?: CVE-2025-68663 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2025-68663 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-68663?: CVE-2025-68663 affects Getoutline Outline. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-68663?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-68663 have an EU (EUVD) identifier?: Yes. CVE-2025-68663 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-207013.
When was CVE-2025-68663 published?: CVE-2025-68663 was published on 2026-02-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:getoutline:outline:*:*:*:*:*:*:*:*

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