What’s Vulnerable › Vulnerabilities

CVE-2020-11611

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-04-07 · updated 2026-06-17
• Weakness: CWE-601

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.

Affected products

• Cross Domain Local Storage Project Cross Domain Local Storage: through 2.0.5

References

• https://github.com/ofirdagan/cross-domain-local-storage
• https://grimhacker.com/exploiting-xdlocalstorage-localstorage-and-postmessage/#Missing-TargetOrigin-Client
• https://github.com/ofirdagan/cross-domain-local-storage
• https://grimhacker.com/exploiting-xdlocalstorage-localstorage-and-postmessage/#Missing-TargetOrigin-Client

Get alerted when CVE-2020-11611 or the next vulnerability affects your stack