How severe is CVE-2025-22389?

CVE-2025-22389 has a CVSS 3.x base score of 8.0, 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 high.

Is CVE-2025-22389 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-22389?

CVE-2025-22389 affects Optimizely Optimizely Cms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-22389?

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-2025-22389 have an EU (EUVD) identifier?

Yes. CVE-2025-22389 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-2770.

When was CVE-2025-22389 published?

CVE-2025-22389 was published on 2025-01-04 and last updated on 2026-06-17.

CVE-2025-22389

CVE-2025-22389 is a high-severity vulnerability in Optimizely Optimizely Cms with a CVSS 3.x base score of 8.0. 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-434.

Key facts

Severity: High (CVSS 3.x base score 8.0)
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-2770
Weakness: CWE-434
Affected product: Optimizely Optimizely Cms
Published: 2025-01-04
Last modified: 2026-06-17

Description

An issue was discovered in Optimizely EPiServer.CMS.Core before 12.32.0. A medium-severity vulnerability exists in the CMS, where the application does not properly validate uploaded files. This allows the upload of potentially malicious file types, including .docm .html. When accessed by application users, these files can be used to execute malicious actions or compromise users' systems.

Frequently asked questions

What is CVE-2025-22389?: An issue was discovered in Optimizely EPiServer.CMS.Core before 12.32.0. A medium-severity vulnerability exists in the CMS, where the application does not properly validate uploaded files. This allows the upload of potentially malicious file types, including .docm .html. When accessed by application users, these files can be used to execute malicious actions or compromise users' systems.
How severe is CVE-2025-22389?: CVE-2025-22389 has a CVSS 3.x base score of 8.0, 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 high.
Is CVE-2025-22389 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-22389?: CVE-2025-22389 affects Optimizely Optimizely Cms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-22389?: 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-2025-22389 have an EU (EUVD) identifier?: Yes. CVE-2025-22389 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-2770.
When was CVE-2025-22389 published?: CVE-2025-22389 was published on 2025-01-04 and last updated on 2026-06-17.

References

https://support.optimizely.com/hc/en-us/articles/33182404079629-Content-Management-System-CMS-Security-Advisory-CMS-2025-03

Affected products (1)

cpe:2.3:a:optimizely:optimizely_cms:*:*:*:*:*:*:*:*

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