cve.bz

CVE-2020-11888

6.1 mediumEPSS 1.9%

Medium (6.1) in python-markdown2 project python-markdown2. EPSS 1.9% chance of exploitation in the next 30 days. Fixed in markdown2 2.3.9.

python-markdown2 through 2.3.8 allows XSS because element names are mishandled unless a \w+ match succeeds. For example, an attack might use elementname@ or elementname- with an onclick attribute.

Severity

CVSS 3.1

6.1 medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
1.9% chance of exploitation in the next 30 days; higher than 80% of CVEs (scores of 2026-10-31)
CWE
CWE-79
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-fv3h-8x5j-pvgqPyPImarkdown2<2.3.92.3.9
PYSEC-2020-65PyPImarkdown2<2.3.92.3.9

References

Check your stackJSON