CVE-2020-6816

Aliases:GHSA-m6xf-fq7q-8743PYSEC-2020-28
Advisory lineage Upstream: 0 Downstream: 8
Modified
Published: 24 Mar 2020, 21:15
Last modified:04 Aug 2024, 09:11

Vulnerability Summary

Overall Risk (default)
medium
34/100
CVSS Score
6.1 MEDIUM
v3.1 (nvd)
EPSS Score
0.42% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
2 found
Dark Web
Not detected

Timeline

24 Mar 2020, 21:15
Published
Vulnerability first disclosed
04 Aug 2024, 09:11
Last Modified
Vulnerability information updated

Description

In Mozilla Bleach before 3.12, a mutation XSS in bleach.clean when RCDATA and either svg or math tags are whitelisted and the keyword argument strip=False.

CVSS Metrics

  • v4.0•MEDIUM•Score: 5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
  • v3.1•MEDIUM•Score: 6.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
  • v2.0•MEDIUM•Score: 4.3AV:N/AC:M/Au:N/C:N/I:P/A:N

EPSS Trends

Current EPSS score: 0.42%• Percentile: 62%

Techniques & Countermeasures

  • CWE-79•Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

    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.

Affected Systems

  • fedoraproject•fedora

    33

  • mozilla•bleach

    < 3.1.2

  • PyPI•bleach

    < 3.1.2

References (10)