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Cross-site Scripting vulnerability in SimpleXLSXEx::readThemeColors, SimpleXLSXEx::getColorValue and SimpleXLSX::toHTMLEx

Moderate severity GitHub Reviewed Published Dec 21, 2024 in shuchkin/simplexlsx • Updated Dec 23, 2024

Package

composer shuchkin/simplexlsx (Composer)

Affected versions

>= 1.0.12, < 1.1.13

Patched versions

1.1.13

Description

Impact

When calling the extended toHTMLEx method, it is possible to execute arbitrary JavaScript code.

Patches

The supplied patch resolves this vulnerability for SimpleXLSX. Use 1.1.13

Workarounds

Don't use data publication via toHTMLEx

This vulnerability was discovered by Aleksey Solovev (Positive Technologies)

References

@shuchkin shuchkin published to shuchkin/simplexlsx Dec 21, 2024
Published by the National Vulnerability Database Dec 23, 2024
Published to the GitHub Advisory Database Dec 23, 2024
Reviewed Dec 23, 2024
Last updated Dec 23, 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
Network
Attack complexity
Low
Privileges required
Low
User interaction
Required
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None

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

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(24th percentile)

Weaknesses

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. Learn more on MITRE.

CVE ID

CVE-2024-56364

GHSA ID

GHSA-r87q-fj25-f8jf

Source code

Credits

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