Ecosyste.ms: Advisories

Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTRtcXYtZ2NyMy1wZmY5

Cross-site scripting in phpoffice/phpspreadsheet

This affects the package phpoffice/phpspreadsheet. The library is vulnerable to XSS when creating an html output from an excel file by adding a comment on any cell. The root cause of this issue is within the HTML writer where user comments are concatenated as part of link and this is returned as HTML.

Permalink: https://github.com/advisories/GHSA-4mqv-gcr3-pff9
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLTRtcXYtZ2NyMy1wZmY5
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: almost 3 years ago
Updated: 3 months ago

CVSS Score: 6.4
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Identifiers: GHSA-4mqv-gcr3-pff9, CVE-2020-7776
References:

• https://nvd.nist.gov/vuln/detail/CVE-2020-7776
• https://github.com/PHPOffice/PhpSpreadsheet/commit/0ed5b800be2136bcb8fa9c1bdf59abc957a98845
• https://github.com/PHPOffice/PhpSpreadsheet/blob/master/src/PhpSpreadsheet/Writer/Html.php%23L1792
• https://snyk.io/vuln/SNYK-PHP-PHPOFFICEPHPSPREADSHEET-1048856
• https://github.com/PHPOffice/PhpSpreadsheet/pull/1719
• https://github.com/FriendsOfPHP/security-advisories/blob/master/phpoffice/phpspreadsheet/CVE-2020-7776.yaml
• https://github.com/advisories/GHSA-4mqv-gcr3-pff9

Repository: https://github.com/PHPOffice/PhpSpreadsheet
Blast Radius: 27.5

Affected Packages