CVE-2021-42360 (GCVE-0-2021-42360)

Vulnerability from cvelistv5 – Published: 2021-11-17 17:45 – Updated: 2025-02-14 17:51
VLAI?
Summary
On sites that also had the Elementor plugin for WordPress installed, it was possible for users with the edit_posts capability, which includes Contributor-level users, to import blocks onto any page using the astra-page-elementor-batch-process AJAX action. An attacker could craft and host a block containing malicious JavaScript on a server they controlled, and then use it to overwrite any post or page by sending an AJAX request with the action set to astra-page-elementor-batch-process and the url parameter pointed to their remotely-hosted malicious block, as well as an id parameter containing the post or page to overwrite. Any post or page that had been built with Elementor, including published pages, could be overwritten by the imported block, and the malicious JavaScript in the imported block would then be executed in the browser of any visitors to that page.
Severity ?
7.6 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L
CWE
  • CWE-284 - Improper Access Control
  • CWE-79 - Cross-site Scripting (XSS)
  • CWE-99 - Improper Control of Resource Identifiers ('Resource Injection')
Assigner
References
Impacted products
Vendor Product Version
BrainStormForce Starter Templates — Elementor, Gutenberg & Beaver Builder Templates Affected: 2.7.0 , ≤ 2.7.0 (custom)
Create a notification for this product.
Credits
Ramuel Gall, Wordfence
Show details on NVD website
To clipboard 

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}


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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.