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Cross-site Scripting in enshrined/svg-sanitize

Moderate severity GitHub Reviewed Published Feb 13, 2022 in darylldoyle/svg-sanitizer • Updated Feb 5, 2024

Package

composer enshrined/svg-sanitize (Composer)

Affected versions

< 0.15.0

Patched versions

0.15.0

Description

Impact

SVG sanitizer library before version 0.15.0 did not remove HTML elements wrapped in a CDATA section. As a result, SVG content embedded in HTML (fetched as text/html) was susceptible to cross-site scripting. Plain SVG files (fetched as image/svg+xml) were not affected.

Patches

This issue is fixed in 0.15.0 and higher.

Workarounds

There is currently no workaround available without upgrading.

For more information

If you have any questions or comments about this advisory:

References

@darylldoyle darylldoyle published to darylldoyle/svg-sanitizer Feb 13, 2022
Published by the National Vulnerability Database Feb 14, 2022
Published to the GitHub Advisory Database Feb 14, 2022
Reviewed Feb 14, 2022
Last updated Feb 5, 2024

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Local
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS score

0.066%
(31st percentile)

Weaknesses

CVE ID

CVE-2022-23638

GHSA ID

GHSA-fqx8-v33p-4qcc

Source code

Credits

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