CVE-2022-24762
Exposure of Sensitive Information to an Unauthorized Actor in sysend.js
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 messages.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Exposure of Sensitive Information to an Unauthorized Actor in sysend.js
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 messages.
- Record
CVE-2022-24762- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
EUVDEUVD-2022-1317
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 messages.
- Record
EUVD-2022-1317- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-4vvg-x86p-mvqc
Leaking of user information on Cross-Domain communication in sysend
Impact
Users that use Cross-Origin communication and send sensitive information make it possible for this data to be intercepted. This is not a big impact because it happens only on the same browser.
Patches
It has been patched in version 1.10.0
Workarounds
The only workaround is to not send sensitive information with sysend messages.
- Record
GHSA-4vvg-x86p-mvqc- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-200, CWE-346
- Updated
- 2026-11-02
NVD
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 messages.
- Record
CVE-2022-24762- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:P/I:N/A:N - Weakness
- CWE-200, CWE-346
- Updated
- 2026-11-02
OSV
Exposure of Sensitive Information to an Unauthorized Actor in sysend.js
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 messages.
- Record
CVE-2022-24762- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
OSVGHSA-4vvg-x86p-mvqc
Leaking of user information on Cross-Domain communication in sysend
Impact
Users that use Cross-Origin communication and send sensitive information make it possible for this data to be intercepted. This is not a big impact because it happens only on the same browser.
Patches
It has been patched in version 1.10.0
Workarounds
The only workaround is to not send sensitive information with sysend messages.
- Record
GHSA-4vvg-x86p-mvqc- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-200, CWE-346
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
sysendnpm |
before 1.10.0 | 1.10.0 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2022-24762 is a medium vulnerability (CVSS 6.5) in Jcubic Sysend, published March 14, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.68%, the 52nd percentile. Fixed in sysend 1.10.0.
References
github.com/jcubic/sysend.js/security/advisories/GHSA-4vvg-x86p-mvqc
nvd.nist.gov/vuln/detail/CVE-2022-24762