PT-2024-18364 · WordPress · The Essential Blocks – Page Builder Gutenberg Blocks

Ancorn + 2 · Published 2024-03-13 · Updated 2025-01-22 · CVE-2024-1854

Positive Technologies (AI Summary)

CVSS v3.1

6.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions The Essential Blocks – Page Builder Gutenberg Blocks, Patterns & Templates plugin for WordPress versions up to, and including, 4.5.1

Description The issue is related to Stored Cross-Site Scripting via the blockId parameter due to insufficient input sanitization and output escaping. This allows authenticated attackers with contributor access or higher to inject arbitrary web scripts in pages, which will execute when a user accesses an injected page.

Recommendations For versions up to, and including, 4.5.1, update to a version higher than 4.5.1 to resolve the issue. As a temporary workaround, consider restricting access to the blockId parameter to minimize the risk of exploitation.

Fix

XSS

RCE

Weakness Enumeration

CWE-79

CWE-20

Related Identifiers

CVE-2024-1854

Affected Products

The Essential Blocks – Page Builder Gutenberg Blocks

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2024-1854 · Security Note
• https://osv.dev/vulnerability/CVE-2024-1854 · Vendor Advisory
• https://t.me/cvenotify/108272 · Telegram Post
• https://wordfence.com/threat-intel/vulnerabilities/id/86364b6f-dec8-48d8-9d2d-de1ee4901872?source=cve · Note
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3041859%40essential-blocks%2Ftrunk&old=3036273%40essential-blocks%2Ftrunk&sfp_email=&sfph_mail= · Note
• https://twitter.com/CVEnew/status/1767938597179785483 · Twitter Post