CVE-2026-123301 | BDVDB-2026-401209 Detail

JetBrainsIntelliJ IDEA

Description#

In JetBrains IntelliJ IDEA before 2026.3 dOM-based XSS in the OpenAPI preview error view was possible

Per CVSS v3.1: confidentiality impact high, integrity impact low, availability impact none. Attack vector: network.

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

No public exploit known

8.2 High

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 18.7.

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Cross-Site Scripting

No specific action is recorded in the source data. Check the references for vendor guidance.

Not available

8.2 High

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N

Not available

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).