PT-2019-15705 · Svg Sanitize · Svg-Sanitizer

Published 2019-11-11 · Updated 2020-08-24 · CVE-2019-18857

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Name of the Vulnerable Software and Affected Versions svg-sanitizer versions prior to 0.12.0

Description The issue concerns the mishandling of script and data values in attributes, which can be demonstrated by the presence of unexpected whitespace, such as in the javascript:alert substring. This indicates a potential problem with how the sanitizer processes certain types of input.

Recommendations For versions prior to 0.12.0, update to version 0.12.0 or later to resolve the issue. As a temporary workaround, consider restricting the input allowed for attributes to minimize the risk of exploitation.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2019-18857

GHSA-GF8J-V8X5-H9QP

Affected Products

Svg-Sanitizer

References · 6

• https://github.com/darylldoyle/svg-sanitizer/commit/51ca4b713f3706d6b27769c6296bbc0c28a5bbd0 · Patch
• https://osv.dev/vulnerability/CVE-2019-18857 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-gf8j-v8x5-h9qp · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-18857 · Security Note
• https://github.com/darylldoyle/svg-sanitizer/compare/0.11.0...0.12.0 · Note
• https://github.com/darylldoyle/svg-sanitizer · Note