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CVE Record

CVE-2015-9545: An issue was discovered in xdLocalStorage through 2.0.5.

An issue was discovered in xdLocalStorage through 2.0.5. The receiveMessage() function in xdLocalStorage.js does not implement any validation of the origin of web messages. Remote attackers who can entice a user to load a malicious site can exploit this issue to impact the confidentiality and integrity of data in the local storage of the vulnerable site via malicious web messages.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This is a browser-side data exposure and tampering issue in xdLocalStorage through 2.0.5. A user lured to a malicious site could have messages sent to a vulnerable site’s storage helper without proper origin checks, risking local storage confidentiality and integrity.

Executive priority

Treat as a targeted web application risk, not an infrastructure emergency. Prioritize customer-facing apps that store tokens, identifiers, or sensitive preferences in localStorage through this library.

Technical view

xdLocalStorage.js receiveMessage() fails to validate the origin of postMessage web messages. The CVE states remote attackers can exploit this by enticing a user to load a malicious site, affecting data in the vulnerable site’s local storage. No CVSS or CWE is provided.

Likely exposure

Exposure is most likely in web applications that include xdLocalStorage or cross-domain-local-storage through version 2.0.5 and use it for cross-domain localStorage access.

Exploitation context

The source bundle does not show KEV listing or confirmed active exploitation. The described attack requires user interaction: the victim must load a malicious site able to send crafted web messages to the vulnerable integration.

Researcher notes

Evidence is limited: the CVE text names the vulnerable function and impact, but no CVSS, CWE, fixed release, or exploitation confirmation is provided. Validate exposure in application code, not only dependency metadata.

Mitigation direction

  • Inventory applications for xdLocalStorage or cross-domain-local-storage through 2.0.5.
  • Check upstream project guidance and pull request 19 for origin-validation changes.
  • Remove the library if cross-domain localStorage is no longer required.
  • Ensure message handlers reject untrusted origins before storage reads or writes.
  • Avoid storing sensitive data in localStorage reachable through this component.

Validation and detection

  • Search dependency manifests and bundled assets for xdLocalStorage.js usage.
  • Confirm deployed versions are not xdLocalStorage through 2.0.5.
  • Review receiveMessage() or message event handlers for trusted-origin validation.
  • Verify storage operations cannot occur before origin checks pass.
  • Document affected routes and data types stored through the library.
Prepared
Confidence
medium
Sources
6

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
5Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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