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CVE-2026-49384

26
FAUCET Score

In JetBrains PyCharm before 2025.3.4 stored XSS in Jupyter notebook Markdown cells was possible

First published: May 29, 2026Last modified: May 29, 2026

Impacted Technologies

VendorProductVersion(s)CPE
< 2025.3.4CPE matchmatch criteria
cpe:2.3:a:jetbrains:pycharm:*:*:*:*:*:*:*:*
>= 0, < 2025.3.4CPE match
cpe:2.3:a:jetbrains:pycharm:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.18%
Probability of exploitation in next 30 days
EPSS Percentile
7.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0018 is in the 7th percentile among its peer group of 26,221 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

jetbrains.com / privacy-security/issues-fixed
Vendor Advisory