Medium severity6.1NVD Advisory· Published Apr 20, 2020· Updated Jun 17, 2026
CVE-2020-11888
CVE-2020-11888
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
markdown2PyPI | < 2.3.9 | 2.3.9 |
Affected products
5- python-markdown2/python-markdown2description
- ghsa-coords3 versionspkg:pypi/markdown2pkg:rpm/opensuse/python-markdown2&distro=openSUSE%20Leap%2015.1pkg:rpm/suse/python-markdown2&distro=SUSE%20Package%20Hub%2015%20SP1
< 2.3.9+ 2 more
- (no CPE)range: < 2.3.9
- (no CPE)range: < 2.3.7-lp151.2.3.1
- (no CPE)range: < 2.3.7-bp151.2.3.1
- cpe:2.3:a:python-markdown2_project:python-markdown2:*:*:*:*:*:*:*:*Range: <=2.3.8
Patches
Vulnerability mechanics
References
12- github.com/trentm/python-markdown2/issues/348nvdExploitThird Party AdvisoryWEB
- github.com/advisories/GHSA-fv3h-8x5j-pvgqghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2020-11888ghsaADVISORY
- lists.opensuse.org/opensuse-security-announce/2020-05/msg00031.htmlnvdWEB
- lists.opensuse.org/opensuse-security-announce/2020-05/msg00035.htmlnvdWEB
- github.com/pypa/advisory-database/tree/main/vulns/markdown2/PYSEC-2020-65.yamlghsaWEB
- lists.fedoraproject.org/archives/list/[email protected]/message/6XOAIRJJCZNJUALXDHSIGH5PS2H63A3JghsaWEB
- lists.fedoraproject.org/archives/list/[email protected]/message/AQLRBGRVRRZK7P5SFL2MNGXFX37YHJAVghsaWEB
- lists.fedoraproject.org/archives/list/[email protected]/message/PN6QSHRFZXRQAYZJQ4MOW5MKIXBYOMEDghsaWEB
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XOAIRJJCZNJUALXDHSIGH5PS2H63A3J/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AQLRBGRVRRZK7P5SFL2MNGXFX37YHJAV/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PN6QSHRFZXRQAYZJQ4MOW5MKIXBYOMED/nvd
News mentions
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