CVE-2020-11610

xdlocalstorage does not verify request origin

8.8 High

An issue was discovered in xdLocalStorage through 2.0.5. The postData() function in xdLocalStoragePostMessageApi.js specifies the wildcard (*) as the targetOrigin when calling the postMessage() function on the parent object. Therefore any domain can load the application hosting the "magical iframe" and receive the messages that the "magical iframe" sends.

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: High
Availability: High

Exploit likelihood

1.41%Up 0.8 points since Apr 14, 2021

What each source reports

NVD Score used 8.8

Record: CVE-2020-11610
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0: 6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness: CWE-668
Updated: 2026-11-02

CVE List No score

Record: CVE-2020-11610
Updated: 2026-11-02

EUVDEUVD-2022-4615 No score

Record: EUVD-2022-4615
Updated: 2026-11-03

GitHub AdvisoriesGHSA-mr5m-2385-2vcp 8.8

xdlocalstorage does not verify request origin

An issue was discovered in xdLocalStorage through 2.0.5. The postData() function in xdLocalStoragePostMessageApi.js specifies the wildcard (*) as the targetOrigin when calling the postMessage() function on the parent object. Therefore any domain can load the application hosting the "magical iframe" and receive the messages that the "magical iframe" sends.

Record: GHSA-mr5m-2385-2vcp
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-668
Updated: 2026-11-02

OSV 8.8

Record: CVE-2020-11610
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVGHSA-mr5m-2385-2vcp 8.8

xdlocalstorage does not verify request origin

Record: GHSA-mr5m-2385-2vcp
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-668
Updated: 2026-11-02

Affected products

cross domain local storage project domain local storage

Affected packages

Affected packages
Package	Affected	Fixed
`xdlocalstorage` npm	through 2.0.5	None known

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-11610 is a high vulnerability (CVSS 8.8) in Cross Domain Local Storage Project Domain Local Storage, published April 7, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.41%, the 72nd percentile. No source names a fixed version.