How severe is CVE-2020-11611?

CVE-2020-11611 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2020-11611 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-11611?

CVE-2020-11611 affects Cross Domain Local Storage Project Cross Domain Local Storage. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-11611?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-11611 published?

CVE-2020-11611 was published on 2020-04-07 and last updated on 2026-06-17.

CVE-2020-11611

CVE-2020-11611 is a medium-severity vulnerability in Cross Domain Local Storage Project Cross Domain Local Storage with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-601.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 5.8
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-601
Affected product: Cross Domain Local Storage Project Cross Domain Local Storage
Published: 2020-04-07
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2020-11611?: 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.
How severe is CVE-2020-11611?: CVE-2020-11611 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2020-11611 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-11611?: CVE-2020-11611 affects Cross Domain Local Storage Project Cross Domain Local Storage. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-11611?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-11611 published?: CVE-2020-11611 was published on 2020-04-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cross_domain_local_storage_project:cross_domain_local_storage:*:*:*:*:*:*:*:*

More vulnerabilities in Cross Domain Local Storage Project Cross Domain Local Storage

CVE-2020-11610 — High (CVSS 8.8): An issue was discovered in xdLocalStorage through 2.0.5. The postData() function in xdLocalStoragePostMessageApi.js…
CVE-2015-9545 — High (CVSS 7.1): An issue was discovered in xdLocalStorage through 2.0.5. The receiveMessage() function in xdLocalStorage.js does not…
CVE-2015-9544 — High (CVSS 7.1): An issue was discovered in xdLocalStorage through 2.0.5. The receiveMessage() function in…

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