CVE-2024-45292Public exploitNetwork attack vector

Script execution via unsanitized JavaScript hyperlink URLs

Published Oct 7, 2024 · Updated Oct 7, 2024

Cross-site scripting in PHPOffice PhpSpreadsheet allows remote authenticated users to run script through crafted spreadsheet links. The Html writer copies javascript: hyperlink URLs from spreadsheet cells into generated href attributes without rejecting the executable scheme. Exploitation requires an application to render attacker-controlled spreadsheet content as HTML and a user to click the link, enabling script execution in that page's browser context.

CVSS severity4.8
Medium
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in PHPOffice PhpSpreadsheet allows remote authenticated users to run script through crafted spreadsheet links. The Html writer copies javascript: hyperlink URLs from spreadsheet cells into generated href attributes without rejecting the executable scheme. Exploitation requires an application to render attacker-controlled spreadsheet content as HTML and a user to click the link, enabling script execution in that page's browser context.

The record

CVE
CVE-2024-45292
Published
Oct 7, 2024
Updated
Oct 7, 2024
Vendor
PHPOffice
Product
PhpSpreadsheet
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 7, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 7, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <1.29.2
  2. Affected versionversion=< 1.29.2
  3. Affected versionversion=>= 2.0.0, < 2.1.1
  4. Affected versionversion=2.0.0 <2.1.1
  5. Affected versionversion=>= 2.2.0, < 2.3.0
  6. Affected versionversion=2.2.0 <2.3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

PHPOffice · PhpSpreadsheetversion=0 <1.29.2; version=< 1.29.2; version=>= 2.0.0, < 2.1.1; version=2.0.0 <2.1.1; version=>= 2.2.0, < 2.3.0; version=2.2.0 <2.3.0

Published CVSS scores

5.4GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
4.8GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.001Malicious Link

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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