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Cross-site Scripting vulnerability in SimpleXLSXEx::readXfs and SimpleXLSX::toHTMLEx

Moderate
shuchkin published GHSA-x6mh-rjwm-8ph7 Dec 12, 2024

Package

composer shuchkin/simplexlsx (Composer)

Affected versions

1.0.12-1.1.11

Patched versions

1.1.12

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 1.1.12

Workarounds

Don't use direct publication via toHTMLEx

This vulnerability was discovered by Aleksey Solovev (Positive Technologies)

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

CVE ID

CVE-2024-55878

Weaknesses

Credits