Vulnerability Details : 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 category: Cross site scripting (XSS)
Products affected by CVE-2020-11888
- cpe:2.3:a:python-markdown2_project:python-markdown2:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-11888
0.36%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 72 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-11888
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:P/A:N |
8.6
|
2.9
|
NIST | |
|
6.1
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
2.8
|
2.7
|
NIST |
CWE ids for CVE-2020-11888
-
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-11888
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6XOAIRJJCZNJUALXDHSIGH5PS2H63A3J/
[SECURITY] Fedora 31 Update: python-markdown2-2.3.9-1.fc31 - package-announce - Fedora Mailing-Lists
-
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00035.html
[security-announce] openSUSE-SU-2020:0656-1: moderate: Security update f
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PN6QSHRFZXRQAYZJQ4MOW5MKIXBYOMED/
[SECURITY] Fedora 32 Update: python-markdown2-2.3.9-1.fc32 - package-announce - Fedora Mailing-Lists
-
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00031.html
[security-announce] openSUSE-SU-2020:0651-1: moderate: Security update f
-
https://github.com/trentm/python-markdown2/issues/348
Another Filter bypass leading to XSS · Issue #348 · trentm/python-markdown2 · GitHubExploit;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AQLRBGRVRRZK7P5SFL2MNGXFX37YHJAV/
[SECURITY] Fedora 30 Update: python-markdown2-2.3.9-1.fc30 - package-announce - Fedora Mailing-Lists
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