What is CVE-2020-7776?

CVE-2020-7776 is a high-severity vulnerability in Phpoffice Phpspreadsheet, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2020-12-09.

How severe is CVE-2020-7776?

High severity. CVSS v3 base score is 7.1 out of 10.

XSS in Phpoffice Phpspreadsheet

CVE-2020-7776

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 us…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.013 (67.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N.

Affected products

Phpoffice Phpspreadsheet
N/a Phpoffice/phpspreadsheet — versions 0.0.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

report@snyk.io (Exploit, Third Party Advisory, x_refsource_MISC)
report@snyk.io (Patch, Third Party Advisory, x_refsource_MISC)
report@snyk.io (x_refsource_MISC, Broken Link)

Frequently asked questions

What is CVE-2020-7776?: CVE-2020-7776 is a high-severity vulnerability in Phpoffice Phpspreadsheet, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2020-12-09.
How severe is CVE-2020-7776?: High severity. CVSS v3 base score is 7.1 out of 10.