How severe is CVE-2025-53959?

CVE-2025-53959 has a CVSS 3.x base score of 7.6, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity low, and availability none.

Is CVE-2025-53959 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-53959?

CVE-2025-53959 affects Jetbrains Youtrack. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-53959?

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-2025-53959 have an EU (EUVD) identifier?

Yes. CVE-2025-53959 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-21452.

When was CVE-2025-53959 published?

CVE-2025-53959 was published on 2025-07-15 and last updated on 2026-06-17.

CVE-2025-53959

CVE-2025-53959 is a high-severity vulnerability in Jetbrains Youtrack with a CVSS 3.x base score of 7.6. 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-862.

Key facts

Severity: High (CVSS 3.x base score 7.6)
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-21452
Weakness: CWE-862
Affected product: Jetbrains Youtrack
Published: 2025-07-15
Last modified: 2026-06-17

Description

In JetBrains YouTrack before 2025.2.86069, 2024.3.85077, 2025.1.86199 email spoofing via an administrative API was possible

Frequently asked questions

What is CVE-2025-53959?: In JetBrains YouTrack before 2025.2.86069, 2024.3.85077, 2025.1.86199 email spoofing via an administrative API was possible
How severe is CVE-2025-53959?: CVE-2025-53959 has a CVSS 3.x base score of 7.6, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity low, and availability none.
Is CVE-2025-53959 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-53959?: CVE-2025-53959 affects Jetbrains Youtrack. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-53959?: 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-2025-53959 have an EU (EUVD) identifier?: Yes. CVE-2025-53959 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-21452.
When was CVE-2025-53959 published?: CVE-2025-53959 was published on 2025-07-15 and last updated on 2026-06-17.

References

https://www.jetbrains.com/privacy-security/issues-fixed/

Affected products (1)

cpe:2.3:a:jetbrains:youtrack:*:*:*:*:*:*:*:*

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