Reusable Blocks Extended <= 0.9 - Cross-Site Request Forgery via reblex_reusable_screen_block_pattern_registration

2023-03-13 00:00

Rio Darmawan

Strategic Overview

Status

Patched in 0.9.1

Affected PluginReusable Blocks Extended

Affected Version<= 0.9

CVSS4.3Medium

CVECVE-2023-27611

View all Reusable Blocks Extended vulnerabilities

Vulnerability Overview

The Reusable Blocks Extended plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 0.9. This is due to missing or incorrect nonce validation on the 'reblex_reusable_screen_block_pattern_registration' function. This makes it possible for unauthenticated attackers to delete block patterns via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Technical Analysis

REMEDIATION: Update to version 0.9.1, or a newer patched version --- IDENTIFIER: CWE-352 (Cross-Site Request Forgery (CSRF)) The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.

External References

https://www.cve.org/CVERecord?id=CVE-2023-27611 https://www.wordfence.com/threat-intel/vulnerabilities/id/67c2cac8-c3cf-46d1-a592-229081bc31e1

CVSS Vector

4.3

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged
ConfidentialityNone
IntegrityNone
AvailabilityLow

This record contains material that is subject to copyright

CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

https://www.cve.org/Legal/TermsOfUse

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

https://www.wordfence.com/wordfence-intelligence-terms-and-conditions/