Ghostwire

CVE-2026-42615: GCHQ CyberChef before 11.0.0 allows XSS via Show Base64 offsets, as demonstrated by the...

HIGH CVSS 7.2 Exploit Available 2 PoC

Published: April 29, 2026 | Last Modified: April 29, 2026

Description

GCHQ CyberChef before 11.0.0 allows XSS via Show Base64 offsets, as demonstrated by the /#recipe=Show_Base64_offsets('%3Cscript substring.

Ghostwire Analysis — What This Means Practically

This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.

Proof-of-Concept Exploits (2)

Security Coverage (1 articles)

References