High severity7.1NVD Advisory· Published Feb 26, 2025· Updated Jun 17, 2026

CVE-2024-12878

Description

The Custom Block Builder WordPress plugin before 3.8.3 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

WordPress/Custom Block Builderllm-fuzzy2 versions
<3.8.3+ 1 more
- (no CPE)range: <3.8.3
- (no CPE)
Package: https://wordpress.org/plugins/custom-block-builder

Patches

Vulnerability mechanics

References

wpscan.com/vulnerability/827444d1-87cb-4057-827a-d802eac82cf8/nvdExploitThird Party Advisory

News mentions

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