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CVE Record

CVE-2015-9366: Custom URL Tracking Add-on for iThemes Exchange before 1.1.0 for WordPress has XSS via add_query_arg() and...

Custom URL Tracking Add-on for iThemes Exchange before 1.1.0 for WordPress has XSS via add_query_arg() and remove_query_arg().

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This CVE describes a cross-site scripting issue in the Custom URL Tracking Add-on for iThemes Exchange on WordPress before version 1.1.0. Affected sites could expose users or administrators to injected script content. Public sources do not provide CVSS, detailed impact, or confirmed exploitation.

Executive priority

Treat this as a targeted legacy WordPress plugin hygiene issue. It is not KEV-listed in the provided data, but externally reachable WordPress commerce sites should be checked promptly because XSS can affect account trust and administrator sessions.

Technical view

The vulnerability is XSS tied to unsafe use of WordPress add_query_arg() and remove_query_arg() in the add-on before 1.1.0. The provided sources do not specify authentication requirements, affected endpoints, payload conditions, or exact patch mechanics beyond the version boundary.

Likely exposure

Exposure is limited to WordPress sites running the Custom URL Tracking Add-on for iThemes Exchange before 1.1.0. Sites without this add-on, or already updated beyond the vulnerable range, are not shown as affected by the provided sources.

Exploitation context

The bundle does not show CISA KEV listing or any cited evidence of active exploitation. The 2015 public advisories describe a coordinated WordPress plugin security update involving XSS risk, but do not provide exploitation telemetry for this specific CVE.

Researcher notes

Public evidence is sparse: no CVSS, CWE, endpoint details, exploit preconditions, or active exploitation claim are provided. The strongest source-grounded facts are the product name, vulnerable version range before 1.1.0, XSS class, and association with add_query_arg()/remove_query_arg().

Mitigation direction

  • Inventory WordPress sites for the Custom URL Tracking Add-on for iThemes Exchange.
  • Upgrade affected installations to version 1.1.0 or later where vendor guidance supports it.
  • If no maintained update path exists, disable or remove the add-on.
  • Review the Sucuri and iThemes advisories before production rollout.
  • Prioritize administrator-facing WordPress sites and externally reachable stores.

Validation and detection

  • Confirm installed add-on versions across all WordPress environments.
  • Verify no production instance runs a version earlier than 1.1.0.
  • Check vulnerability scanner results against the actual installed plugin inventory.
  • Review recent WordPress security logs for suspicious reflected-script indicators.
  • Document exceptions where the add-on is absent, disabled, or updated.
Prepared
Confidence
medium
Sources
4

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

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2015-9366 mapping review

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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
3Source 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

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.