CVE-2023-51655 — In JetBrains IntelliJ IDEA before 2023

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

01What is this vulnerability?

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

02Affected products

Vendor	Product	Versions
JetBrains	IntelliJ IDEA	0

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-12-21T09:57:04.395Z
• Last modified: 2024-08-02T22:40:34.145Z

09References

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