CVE-2026-6019
🔶 mediumSummary
http.cookies.Morsel.js_output() returns an inline <script> snippet and only escapes " for JavaScript string context. It does not neutralize the HTML parser-sensitive sequence </script> inside the generated script element. Mitigation base64-encodes the cookie value to disallow escaping using cookie value.
CVSS Score
6.1
Medium
EPSS Score
0.0
Exploit Probability
Published Date
2026-04-22
First Seen: 2026-05-19
📊 Relative Risk Intelligence
This CVE is Lower Risk - more severe than 39.0% of all 321,566 vulnerabilities in our database.
#196,174
Below average severity
Severity Percentile
🎯 CISA SSVC Assessment Updated: Apr 22, 2026
🔍 Exploitation Status
None
No known exploits
⚙️ Automatable
NO
Requires human interaction
💥 Technical Impact
Partial
Limited system impact
🏆 Discovered By
oolongeya (https://github.com/komi22) (reporter)
Seth Larson (https://github.com/sethmlarson) (coordinator)
SSVC data provided by
CISA
Last Modified
2026-05-18
Source
NVD 🔗
CVSS Vector 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS Vector 4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X