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CVE-2026-82090

CriticalPublished

Pocket through 8.33.0.0 allows XSS because "Save to Pocket" injects external HTML into the DOM. JavaScript code can alter the application state via native...

Published: Aug 28, 2026
Updated: Aug 28, 2026
Assigning CNA: mitre
Evidence observed: Sep 15, 2026

Primary CVSS

9.2/ 10Critical

nvd · CVSS 4.0

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/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

EPSS probability estimate

0.3%

Low · next 30 days

Percentile: 20.9%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Pocket through 8.33.0.0 allows XSS because "Save to Pocket" injects external HTML into the DOM. JavaScript code can alter the application state via native bridge methods.

Sources

CVE-2026-82090-18-Years-All-Versions-CVSS-9.2-CRITICAL-The-Pocket-Forever-DayPoC
CVE-2026-82090 · CVSS 9.2 CRITICAL · 0-click stored XSS in Mozilla Pocket — all versions (v0 → v8.33.0.0) · 18-year forever-day · no patch · MITRE published

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