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Input validation vulnerability in HTTP Headers 1.18.11

  • Severity: medium-risk
  • Status: Fixed
  • Publication: July 10, 2023

WordPress versions up to, and including, 1.18.11 are vulnerable to a type of attack called Stored Cross-Site Scripting. This type of attack is possible when the HTTP Headers for WordPress are not properly secured. When this happens, an attacker with administrator-level permissions can inject web scripts into pages. This means that whenever a user visits these pages, the injected scripts will be executed. This type of attack is only possible for multi-site installations and installations where unfiltered_html has been disabled.

Detected in:

HTTP Headers fixed vulnerable versions: >= * <= 1.18.11

This information is sourced from www.wpvulnerability.com. An open-source database of vulnerabilities maintained by the community. Help us out by submitting vulnerabilities!

Version compare shows which versions have a vulnerability. For example: >= 2.2.8 <= 2.2.21 means:

> from 2.2.8
= including 2.2.8 & 2.2.21
< to 2.2.21

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