How severe is CVE-2023-51655?

CVE-2023-51655 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over local access with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2023-51655 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-51655?

CVE-2023-51655 affects Jetbrains Intellij Idea. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-51655?

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

When was CVE-2023-51655 published?

CVE-2023-51655 was published on 2023-12-21 and last updated on 2026-06-17.

CVE-2023-51655

CVE-2023-51655 is a medium-severity vulnerability in Jetbrains Intellij Idea with a CVSS 3.x base score of 6.3. 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-345.

Key facts

Severity: Medium (CVSS 3.x base score 6.3)
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-345
Affected product: Jetbrains Intellij Idea
Published: 2023-12-21
Last modified: 2026-06-17

Description

In JetBrains IntelliJ IDEA before 2023.3.2 code execution was possible in Untrusted Project mode via a malicious plugin repository specified in the project configuration

Frequently asked questions

What is CVE-2023-51655?: In JetBrains IntelliJ IDEA before 2023.3.2 code execution was possible in Untrusted Project mode via a malicious plugin repository specified in the project configuration
How severe is CVE-2023-51655?: CVE-2023-51655 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over local access with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2023-51655 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-51655?: CVE-2023-51655 affects Jetbrains Intellij Idea. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-51655?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-51655 published?: CVE-2023-51655 was published on 2023-12-21 and last updated on 2026-06-17.

References

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

Affected products (1)

cpe:2.3:a:jetbrains:intellij_idea:*:*:*:*:*:*:*:*

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