cve.bz

CVE-2021-32862

5.4 mediumEPSS 1.5%

Medium (5.4). EPSS 1.5% chance of exploitation in the next 30 days. Fixed in nbconvert 6.3.0a0, 6.5.1.

The GitHub Security Lab discovered sixteen ways to exploit a cross-site scripting vulnerability in nbconvert. When using nbconvert to generate an HTML version of a user-controllable notebook, it is possible to inject arbitrary HTML which may lead to cross-site scripting (XSS) vulnerabilities if these HTML notebooks are served by a web server (eg: nbviewer).

Severity

CVSS 3.1

5.4 medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS
1.5% chance of exploitation in the next 30 days; higher than 73% of CVEs (scores of 2026-10-31)
CWE
CWE-79
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-9jmq-rx5f-8jwqPyPInbconvert<6.5.16.5.1
PYSEC-2022-249PyPInbconvert<6.3.0a06.3.0a0

References

Check your stackJSON