PT-2018-13584 · Exceljs · Exceljs

Bl4De + 1 · Published 2018-09-06 · Updated 2019-10-09 · CVE-2018-16459

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions exceljs versions prior to 1.6.0

Description The issue is related to an unescaped payload in exceljs, allowing a possible cross-site scripting (XSS) attack via cell value when a worksheet is displayed in a browser. This is due to exceljs not validating data from parsed XLSX files and embedding HTML tags, like

Recommendations Update to version 1.6.0 or later. As a temporary workaround, consider restricting the display of potentially malicious Excel files in browsers until the issue is resolved.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2018-16459

GHSA-2J2J-8RRV-264G

Affected Products

Exceljs

References · 7

• 🔥 https://hackerone.com/reports/356809 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2018-16459 · Security Note
• https://osv.dev/vulnerability/CVE-2018-16459 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-2j2j-8rrv-264g · Vendor Advisory
• https://github.com/nodejs/security-wg/blob/master/vuln/npm/464.json · Note
• https://npmjs.com/advisories/733 · Note
• https://github.com/advisories/GHSA-2j2j-8rrv-264g · Note