Is CVE-2024-45046 in the CISA KEV catalog?

No. CVE-2024-45046 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-45046?

CVE-2024-45046 has a CVSS v3 base score of 5.4 (MEDIUM).

What is the EPSS score for CVE-2024-45046?

CVE-2024-45046 has an EPSS score of 0.40% (31th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-45046?

Upgrade phpspreadsheet to 2.1.0 or later.

CVE & CISA-KEV Catalog

CVE-2024-45046

MEDIUM

5.4

CVSS v3

NVD

Description

PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. In affected versions `\PhpOffice\PhpSpreadsheet\Writer\Html` doesn't sanitize spreadsheet styling information such as font names, allowing an attacker to inject arbitrary JavaScript on the page. As a result an attacker may used a crafted spreadsheet to fully takeover a session of a user viewing spreadsheet files as HTML. This issue has been addressed in release version 2.1.0. All users are advised to upgrade. There are no known workarounds for this vulnerability.

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

phpspreadsheetNVD

Affected:>= 2.0.0, < 2.1.0Fixed in:2.1.0CVE-2024-45046derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Exploit Intelligence

0.40%probability of exploitation in 30 days

31stpercentile

Low risk: more likely to be exploited than 31% of all known CVEs.

References

Patch2

Exploit1

github.com

Related Vulnerabilities

Other CWE-79 (Cross-Site Scripting (XSS)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-11022	Medium	6.9	99%	-	Fix
CVE-2019-3929	Critical	9.8	99%	KEV	Fix
CVE-2020-9496	Medium	6.1	99%	-	-
CVE-2023-28341	Medium	6.1	99%	-	Fix
CVE-2018-12998	Medium	6.1	98%	-	-
CVE-2025-4123	High	7.6	98%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-09-04.