CVE-2020-11611: An issue was discovered in xdLocalStorage through 2.0.5

Q: How do I fix CVE-2020-11611?

cross domain local storage: upgrade to newer than 2.0.5. Exact commands for each OS are on this page.

Q: Is CVE-2020-11611 being exploited?

CVE-2020-11611 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2020-11611 affect?

CVE-2020-11611 affects cross domain local storage. Severity is medium (CVSS 6.1). An issue was discovered in xdLocalStorage through 2.0.5. The buildMessage() function in xdLocalStorage.js specifies the wildcard (*) as the targetOrigin when calling the postMessage() function on the iframe object. Therefore any domain that

Q: How urgent is CVE-2020-11611?

Priority 42/100. Public exploit reference

This month

MEDIUM 6.1UPGRADE

CVE-2020-11611 is a medium-severity flaw (CVSS 6.1) affecting cross domain local storage. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in xdLocalStorage through 2.0.5. The buildMessage() function in xdLocalStorage.js specifies the wildcard (*) as the targetOrigin when calling the postMessage() function on the iframe object. Therefore any domain that is currently loaded within the iframe can receive the messages that the client sends.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.9% (top 39%)
CISA exploited list	No
Weakness	CWE-601
Published	2020-04-07
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: cross domain local storage project

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

Am I affected?

Timeline

2020-04-07 18:15 UTCPublished CVE record published
2026-06-17 02:50 UTCUpdated Record last modified

cross domain local storage project cross domain local storage UPGRADE

Affected: <= 2.0.5

Fixed in: newer than 2.0.5

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy cross-domain-local-storage || rpm -q cross-domain-local-storage || cross-domain-local-storage --version

2. UPGRADE to newer than 2.0.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade cross-domain-local-storage

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade cross-domain-local-storage

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2020-11611?

cross domain local storage: upgrade to newer than 2.0.5. Exact commands for each OS are on this page.

Is CVE-2020-11611 being exploited?

CVE-2020-11611 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-2020-11611 affect?

CVE-2020-11611 affects cross domain local storage. Severity is medium (CVSS 6.1). An issue was discovered in xdLocalStorage through 2.0.5. The buildMessage() function in xdLocalStorage.js specifies the wildcard (*) as the targetOrigin when calling the postMessage() function on the iframe object. Therefore any domain that

How urgent is CVE-2020-11611?

Priority 42/100. Public exploit reference

Related CVEs

CVE-2020-11610 HIGH 8.8 UPGRADE An issue was discovered in xdLocalStorage through 2.0.5
CVE-2015-9545 HIGH 7.1 UPGRADE An issue was discovered in xdLocalStorage through 2.0.5
CVE-2015-9544 HIGH 7.1 UPGRADE An issue was discovered in xdLocalStorage through 2.0.5

References

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