CVE-2020-7776

MediumCVSS 6.4/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 6.4/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

No affected versions have been published.

Timeline

Published: Dec 9, 2020
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2020

CVE-2020-77777.2This affects all versions of package jsen. If an attacker can control the schema file, it could run arbitrary JavaScript code on the victim CVE-2020-77787.3This affects the package systeminformation before 4.30.2. The attacker can overwrite the properties and functions of an object, which can le CVE-2020-77797.5All versions of package djvalidator are vulnerable to Regular Expression Denial of Service (ReDoS) by sending crafted invalid emails - for e CVE-2020-77808.8This affects the package com.softwaremill.akka-http-session:core_2.13 before 0.5.11; the package com.softwaremill.akka-http-session:core_2.1 CVE-2020-77819.8This affects the package connection-tester before 0.2.1. The injection point is located in line 15 in index.js. The following PoC demonstrat CVE-2020-77829.8This affects all versions of package spritesheet-js. It depends on a vulnerable package platform-command. The injection point is located in CVE-2020-77849.8This affects all versions of package ts-process-promises. The injection point is located in line 45 in main entry of package in lib/process-CVE-2020-77859.8This affects all versions of package node-ps. The injection point is located in line 72 in lib/index.js.CVE-2020-77869.8This affects all versions of package macfromip. The injection point is located in line 66 in macfromip.js.CVE-2020-77878.2This affects all versions of package react-adal. It is possible for a specially crafted JWT token and request URL can cause the nonce, sessi CVE-2020-77889.8This affects the package ini before 1.3.6. If an attacker submits a malicious INI file to an application that parses it with ini.parse, they CVE-2020-77895.6This affects the package node-notifier before 9.0.0. It allows an attacker to run arbitrary commands on Linux machines due to the options pa