CVE-2020-11888
unknown
CVSS v3
—
CVSS v2
—
VIR risk
—
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.
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-11888
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 2.3.9-1 |
| debian | bullseye | fixed | 2.3.9-1 |
| debian | forky | fixed | 2.3.9-1 |
| debian | sid | fixed | 2.3.9-1 |
| debian | trixie | fixed | 2.3.9-1 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| PyPI | markdown2 | <2.3.9 | 2.3.9 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-11888
- https://github.com/trentm/python-markdown2/issues/348
- https://github.com/pypa/advisory-database/tree/main/vulns/markdown2/PYSEC-2020-65.yaml
- https://github.com/trentm/python-markdown2
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6XOAIRJJCZNJUALXDHSIGH5PS2H63A3J
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AQLRBGRVRRZK7P5SFL2MNGXFX37YHJAV
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PN6QSHRFZXRQAYZJQ4MOW5MKIXBYOMED
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00031.html
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00035.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AQLRBGRVRRZK7P5SFL2MNGXFX37YHJAV/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PN6QSHRFZXRQAYZJQ4MOW5MKIXBYOMED/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6XOAIRJJCZNJUALXDHSIGH5PS2H63A3J/
- https://github.com/advisories/GHSA-fv3h-8x5j-pvgq
- https://security-tracker.debian.org/tracker/CVE-2020-11888
Verify integrity in audit chain (admin only). AS-IS.