CVE-2020-4046 (GCVE-0-2020-4046)

Vulnerability from cvelistv5 – Published: 2020-06-12 15:55 – Updated: 2024-08-04 07:52
VLAI?
Title
Authenticated XSS through embed block in WordPress
Summary
In affected versions of WordPress, users with low privileges (like contributors and authors) can use the embed block in a certain way to inject unfiltered HTML in the block editor. When affected posts are viewed by a higher privileged user, this could lead to script execution in the editor/wp-admin. This has been patched in version 5.4.2, along with all the previously affected versions via a minor release (5.3.4, 5.2.7, 5.1.6, 5.0.10, 4.9.15, 4.8.14, 4.7.18, 4.6.19, 4.5.22, 4.4.23, 4.3.24, 4.2.28, 4.1.31, 4.0.31, 3.9.32, 3.8.34, 3.7.34).
Severity ?
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CWE
  • CWE-80 - Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
Assigner
References
Impacted products
Vendor Product Version
WordPress wordpress-develop Affected: >= 5.4.0, < 5.4.2
Affected: >= 5.3.0, < 5.3.4
Affected: >= 5.2.0, < 5.2.7
Affected: >= 5.1.0, < 5.1.6
Affected: >= 5.0.0, < 5.0.10
Affected: >= 4.9.0, < 4.9.15
Affected: >= 4.8.0, < 4.8.14
Affected: >= 4.7.0, < 4.7.18
Affected: >= 4.6.0, < 4.6.19
Affected: >= 4.5.0, < 4.5.22
Affected: >= 4.4.0, < 4.4.23
Affected: >= 4.3.0, < 4.3.24
Affected: >= 4.2.0, < 4.2.28
Affected: >= 4.1.0, < 4.1.31
Affected: >= 4.0.0, < 4.0.31
Affected: >= 3.9.0, < 3.9.32
Affected: >= 3.8.0, < 3.8.34
Affected: >= 3.7.0, < 3.7.34
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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.