CVE-2022-24762: sysend.js is a library that allows a user to send messages between pages that are open in the same browser

This month

MEDIUM 6.5UPGRADE

CVE-2022-24762 is a medium-severity flaw (CVSS 6.5) affecting sysend.js. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

sysend.js is a library that allows a user to send messages between pages that are open in the same browser. Users that use cross-origin communication may have their communications intercepted. Impact is limited by the communication occurring in the same browser. This issue has been patched in sysend.js version 1.10.0. The only currently known workaround is to avoid sending communications that a user does not want to have intercepted via sysend me

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.7% (top 47%)
CISA exploited list	No
Weakness	CWE-200, CWE-346
Published	2022-03-14
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: sysend.js project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-03-14 23:15 UTCPublished CVE record published
2026-06-17 04:32 UTCUpdated Record last modified

sysend.js project sysend.js UPGRADE

Affected: < 1.10.0

Fixed in: 1.10.0

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls sysend.js

2. UPGRADE to 1.10.0

npm install sysend.js@">=1.10.0"

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-24762?

sysend.js: upgrade to 1.10.0. Exact commands for each OS are on this page.

Is CVE-2022-24762 being exploited?

CVE-2022-24762 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-24762 affect?

CVE-2022-24762 affects sysend.js. Severity is medium (CVSS 6.5). sysend.js is a library that allows a user to send messages between pages that are open in the same browser. Users that use cross-origin communication may have their communications intercepted. Impact is limited by the communication occurrin

How urgent is CVE-2022-24762?

Priority 41/100. Public exploit reference

References

← Back to latest CVEs