CVE-2026-42615 | BDVDB-2026-329669 Detail

GCHQCyberChef

Description#

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

Per CVSS v3.1: confidentiality impact low, integrity impact low, availability impact none. Attack vector: network.

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

No public exploit known

7.2 High

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 22.3.

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Cross-Site Scripting

No specific action is recorded in the source data. Check the references for vendor guidance.

Not available

7.2 High

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

Not available

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).