XSS in Python-Markdown2 Project
CVE-2020-11888
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.019 (79.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 79.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: +0.000
Affected products
Weakness classification (CWE)
References
- github.com/trentm/python-markdown2/issues/348 (Exploit, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-05/msg00031.html (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2020-05/msg00035.html (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2020-11888?
- CVE-2020-11888 is a medium-severity vulnerability in Python-Markdown2 Project, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-04-20.
- How severe is CVE-2020-11888?
- Medium severity. CVSS v3 base score is 6.1 out of 10.