CVE-2020-7776
moderate-risk
Published 2020-12-09
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.
Do I need to act?
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0.34% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.1/10
High
NETWORK
/ LOW complexity
Affected Products (1)
Affected Vendors
References (6)
31
/ 100
moderate-risk
Severity
25/34 · High
Exploitability
1/34 · Minimal
Exposure
5/34 · Minimal