WordPress Core < 6.2.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Embed Discovery

Wordfence Intelligence   >   Vulnerability Database   >   WordPress Core < 6.2.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via Embed Discovery
6.4
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSS 6.4 (Medium)
Publicly Published May 16, 2023
Last Updated August 7, 2023
Researcher Jakub Zoczek - Securitum

Description

WordPress Core is vulnerable to stored Cross-Site Scripting in versions up to, and including, 6.2, due to insufficient validation of the protocol in the response when processing oEmbed discovery. This makes it possible for authenticated attackers with contributor-level and above permissions to use a crafted oEmbed payload at a remote URL to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

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1 affected software package

WordPress

Software Type Core
Patched? Yes
Remediation Update to one of the following versions, or a newer patched version: 4.1.38, 4.2.35, 4.3.31, 4.4.30, 4.5.29, 4.6.26, 4.7.26, 4.8.22, 4.9.23, 5.0.19, 5.1.16, 5.2.18, 5.3.15, 5.4.13, 5.5.12, 5.6.11, 5.7.9, 5.8.7, 5.9.6, 6.0.4, 6.1.2, 6.2.1
Affected Versions
  • < 4.1.38
  • 5.7 - 5.7.9
  • 5.8 - 5.8.7
  • 5.9 - 5.9.6
Expand to see 18 more affected version ranges.
  • 6.0 - 6.0.4
  • 6.1 - 6.1.2
  • 6.2 - 6.2.1
  • 4.2 - 4.2.35
  • 4.3 - 4.3.31
  • 4.4 - 4.4.30
  • 4.5 - 4.5.29
  • 4.6 - 4.6.26
  • 4.7 - 4.7.26
  • 4.8 - 4.8.22
  • 4.9 - 4.9.23
  • 5.0 - 5.0.19
  • 5.1 - 5.1.16
  • 5.2 - 5.2.18
  • 5.3 - 5.3.15
  • 5.4 - 5.4.13
  • 5.5 - 5.5.12
  • 5.6 - 5.6.11
Patched Versions
  • 4.1.38
  • 4.2.35
  • 4.3.31
  • 4.4.30
Expand to see 18 more patched versions.
  • 4.5.29
  • 4.6.26
  • 4.7.26
  • 4.8.22
  • 4.9.23
  • 5.0.19
  • 5.1.16
  • 5.2.18
  • 5.3.15
  • 5.4.13
  • 5.5.12
  • 5.6.11
  • 5.7.9
  • 5.8.7
  • 5.9.6
  • 6.0.4
  • 6.1.2
  • 6.2.1

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