CVE-2020-7776: Cross-site Scripting (XSS)
First published: Wed Dec 09 2020(Updated: )
This affects the package phpoffice/phpspreadsheet from 0.0.0. 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. A fix for this issue is available on commit 0ed5b800be2136bcb8fa9c1bdf59abc957a98845/master branch.
Credit: report@snyk.io report@snyk.io report@snyk.io
| Affected Software | Affected Version | How to fix |
|---|---|---|
| composer/phpoffice/phpspreadsheet | <1.16.0 | |
| Phpspreadsheet Project Phpspreadsheet | <1.16.0 | |
| composer/phpoffice/phpspreadsheet | <1.16.0 | 1.16.0 |
| PHPOffice PhpSpreadsheet | <1.16.0 |
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Reference Links
- https://github.com/PHPOffice/PhpSpreadsheet/pull/1719
- 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/advisories/GHSA-4mqv-gcr3-pff9 (Advisory)
- https://github.com/FriendsOfPHP/security-advisories/blob/master/phpoffice/phpspreadsheet/CVE-2020-7776.yaml
- collector/friends-of-php
- collector/nvd-index
- agent/type
- collector/github-advisory-latest
- source/GitHub
- alias/GHSA-4mqv-gcr3-pff9
- alias/CVE-2020-7776
- agent/software-canonical-lookup
- agent/remedy
- agent/weakness
- agent/references
- agent/description
- collector/nvd-cve
- source/NVD
- collector/github-advisory
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/title
- agent/first-publish-date
- agent/event
- agent/author
- agent/last-modified-date
- collector/nvd-api
- agent/software-canonical-lookup-request
- agent/softwarecombine
- agent/tags
- agent/trending
- package-manager/composer
- vendor/phpspreadsheet project
- canonical/phpspreadsheet project phpspreadsheet
- vendor/phpoffice
- canonical/phpoffice phpspreadsheet