How severe is CVE-2025-30191?

CVE-2025-30191 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-30191 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-30191?

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

Does CVE-2025-30191 have an EU (EUVD) identifier?

Yes. CVE-2025-30191 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-37316.

When was CVE-2025-30191 published?

CVE-2025-30191 was published on 2025-10-31 and last updated on 2026-06-17.

CVE-2025-30191

CVE-2025-30191 is a medium-severity vulnerability with a CVSS 3.x base score of 5.4. 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-1021.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-37316
Weakness: CWE-1021
Published: 2025-10-31
Last modified: 2026-06-17

Description

Malicious content from E-Mail can be used to perform a redressing attack. Users can be tricked to perform unintended actions or provide sensitive information to a third party which would enable further threats. Attribute values containing HTML fragments are now denied by the sanitization procedure. No publicly available exploits are known

Frequently asked questions

What is CVE-2025-30191?: Malicious content from E-Mail can be used to perform a redressing attack. Users can be tricked to perform unintended actions or provide sensitive information to a third party which would enable further threats. Attribute values containing HTML fragments are now denied by the sanitization procedure. No publicly available exploits are known
How severe is CVE-2025-30191?: CVE-2025-30191 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-30191 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-30191?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-30191 have an EU (EUVD) identifier?: Yes. CVE-2025-30191 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-37316.
When was CVE-2025-30191 published?: CVE-2025-30191 was published on 2025-10-31 and last updated on 2026-06-17.

References

https://documentation.open-xchange.com/appsuite/security/advisories/csaf/2025/oxas-adv-2025-0002.json

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