CVE catalog
CVE-2020-11888
python-markdown2: CVE-2020-11888
- Severity
- Medium · CVSS 6.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.93% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | python-markdown2 | sid | 2.5.4-4 | fixed |
| Debian | python-markdown2 | forky | 2.5.4-4 | fixed |
| Debian | python-markdown2 | trixie | 2.4.11-1 | fixed |
| Debian | python-markdown2 | bookworm | 2.4.1-1 | fixed |
| Suse | python-markdown2 | package hub 15 sp1 | 2.3.7-bp151.2.3.1 | fixed |
| Opensuse | python-markdown2 | leap 15.1 | 2.3.7-lp151.2.3.1 | fixed |
| Ubuntu | python-markdown2 | 20.04 | 2.3.7-2 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | python-markdown2 | source | sid | 2.3.9-1 | not yet assigned | Not reported | [959445] |
| Debian | python-markdown2 | source | forky | 2.3.9-1 | not yet assigned | Not reported | [959445] |
| Debian | python-markdown2 | source | trixie | 2.3.9-1 | not yet assigned | Not reported | [959445] |
| Debian | python-markdown2 | source | bookworm | 2.3.9-1 | not yet assigned | Not reported | [959445] |
| Suse | python-markdown2 | rpm | package hub 15 sp1 | 2.3.7-bp151.2.3.1 | Not reported | OPENSUSE-SU-2020:0656-1 | Not reported |
| Opensuse | python-markdown2 | rpm | leap 15.1 | 2.3.7-lp151.2.3.1 | Not reported | OPENSUSE-SU-2020:0651-1 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [python3-markdown2]Fixed
Source package: [python-markdown2]
Details (2)
2.4.1-1· all · bookwormFixed · Fixed:
2.3.9-1dsa · python-markdown2 · debian · bookworm; dsa · python-markdown2 · debian · 12
2.4.1-1· all · bookwormFixed · Fixed:
2.3.9-1dsa · python-markdown2 · debian · bookworm; dsa · python-markdown2 · debian · 12
[Debian 13 (Trixie)]
- [python3-markdown2]Fixed
Source package: [python-markdown2]
Details (2)
2.4.11-1· all · trixieFixed · Fixed:
2.3.9-1dsa · python-markdown2 · debian · 13
2.4.11-1· all · trixieFixed · Fixed:
2.3.9-1dsa · python-markdown2 · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2020_0651-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2020-11888]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2020-11888]
- [https://osv.dev/vulnerability/openSUSE-SU-2020:0651-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2020:0656-1]
- [https://security-tracker.debian.org/tracker/CVE-2020-11888]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]