How severe is CVE-2020-11610?

CVE-2020-11610 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-11610 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-11610?

CVE-2020-11610 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-2020-11610?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-11610 published?

CVE-2020-11610 was published on 2020-04-07 and last updated on 2026-06-17.

CVE-2020-11610

CVE-2020-11610 is a high-severity vulnerability in Cross Domain Local Storage Project Cross Domain Local Storage with a CVSS 3.x base score of 8.8. 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-668.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-668
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 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.

Frequently asked questions

What is CVE-2020-11610?: 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.
How severe is CVE-2020-11610?: CVE-2020-11610 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-11610 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-11610?: CVE-2020-11610 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-2020-11610?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-11610 published?: CVE-2020-11610 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-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…
CVE-2020-11611 — Medium (CVSS 6.1): An issue was discovered in xdLocalStorage through 2.0.5. The buildMessage() function in xdLocalStorage.js specifies the…

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