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TI-2020-06293 Aliases CVE-2020-7776GHSA-4mqv-gcr3-pff9

Cross-site scripting (XSS) in phpoffice/phpspreadsheet

Priority LOW 34CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

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.

Why it matters now

EPSS 0.01317 70th percentileScored 2026-11-07
Fix Fixed phpoffice/phpspreadsheet (Packagist): 1.16.0

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—phpoffice/phpspreadsheet0.0.0 and later—No fix listedCNA
—phpoffice/phpspreadsheet (Packagist)before 1.16.01.16.0Patch availableGHSA-4mqv-gcr3-pff9
—phpoffice/phpexcel (Packagist)up to 1.8.2—No fix listedGHSA-4mqv-gcr3-pff9
  • phpoffice/phpspreadsheet Vendor— Affected 0.0.0 and later Fixed in — No fix listed CNA
  • phpoffice/phpspreadsheet (Packagist) Vendor— Affected before 1.16.0 Fixed in 1.16.0 Patch available GHSA-4mqv-gcr3-pff9
  • phpoffice/phpexcel (Packagist) Vendor— Affected up to 1.8.2 Fixed in — No fix listed GHSA-4mqv-gcr3-pff9

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:phpoffice:phpspreadsheet:*:*:*:*:*:*:*:*before 1.16.0VulnerablePHPOffice
  • cpe:2.3:a:phpoffice:phpspreadsheet:*:*:*:*:*:*:*:* Versions before 1.16.0 Vulnerable ·PHPOffice

Remediation

  • Fix · GHSA-4mqv-gcr3-pff9 phpoffice/phpspreadsheet (Packagist) Fixed in 1.16.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-7776
  2. 2026-10-03 Alias added: GHSA-4mqv-gcr3-pff9

References

Patch 1

Advisory 1

Other 3

  • TI-2026-26406 PhpSpreadsheet SSRF and RCE via PHP stream wrappers in IOFactory::load CVSS 4.0CRITICAL 9.2
  • TI-2024-37339 PhpSpreadsheet vulnerable to unauthorized reflected XSS in Currency.php file CVSS 4.0HIGH 8.3
  • TI-2024-37338 PhpSpreadsheet allows unauthorized reflected XSS in `Convert-Online.php` file CVSS 4.0HIGH 8.3
  • TI-2024-37325 PhpSpreadsheet vulnerable to unauthorized reflected XSS in the Accounting.php file CVSS 4.0HIGH 8.3
  • TI-2024-37324 PhpSpreadsheet vulnerable to unauthorized reflected XSS in the constructor of the Downloader class CVSS 4.0HIGH 8.3
  • TI-2024-30160 XML External Entity Reference (XXE) in PHPSpreadsheet CVSS 3.1HIGH 8.8
See all 24 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences