ALT-PU-2025-7036-3

Package update python3-module-markdown2 in branch sisyphus

Version2.3.10-alt1

Published2026-02-04

Max severityMEDIUM

Severity:

Closed issues (4)

MEDIUM6.1

An issue was discovered in markdown2 (aka python-markdown2) through 2.3.5. The safe_mode feature, which is supposed to sanitize user input against XSS, is flawed and does not escape the input properly. With a crafted payload, XSS can be triggered, as demonstrated by omitting the final '>' character from an IMG tag.

Published: 2018-01-18Modified: 2024-11-21

CVSS 2.0MEDIUM 4.3

CVSS:2.0/AV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS 3.xMEDIUM 6.1

CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

MEDIUM6.1

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.

Published: 2020-04-20Modified: 2024-11-21

CVSS 2.0MEDIUM 4.3

CVSS:2.0/AV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS 3.xMEDIUM 6.1

CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

GHSA-fv3h-8x5j-pvgq

MEDIUM5.1

XSS in python-markdown2

Published: 2020-04-22Modified: 2024-09-24

CVSS 3.xMEDIUM 5.1

CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS 4.0MEDIUM 5.1

CVSS:4.0/CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

References

GHSA-p6h9-gw49-rqm4

MEDIUM5.3

markdown2 is vulnerable to cross-site scripting

Published: 2018-07-12Modified: 2024-09-30

CVSS 3.xMEDIUM 5.3

CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS 4.0MEDIUM 5.3

CVSS:4.0/CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

References