SB2020052220 - Cross-site scripting in Contentful

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Main Vulnerability Database SB2020052220

SB2020052220 - Cross-site scripting in Contentful

Published: May 22, 2020

Security Bulletin ID SB2020052220
Severity
Low
Patch available
NO
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Cross-site scripting (CVE-ID: CVE-2020-13258)

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data, as demonstrated by the api parameter to the-example-app.py. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

PoC:

https://[host]/?cda'"<evil><script>alert(1)</script>&locale=locale=de-DE


Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References