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Easy Digital DownloadsWordPress extension · Awesomemotive

CVE-2015-9527

MEDIUM · 6.1 CVSS v3.1 Published 2019-10-23
Fix available
A fix is available. Upgrade to 1.8.7 / 1.9.10 or later.
See remediation →
68/100
Remediation priority · Elevated
Remotely reachable No privileges

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
The Easy Digital Downloads (EDD) Simple Shipping extension for WordPress, as used with EDD 1.8.x before 1.8.7, 1.9.x before 1.9.10, 2.0.x before 2.0.5, 2.1.x before 2.1.11, 2.2.x before 2.2.9, and 2.3.x before 2.3.7, has XSS because add_query_arg is misused.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

The Easy Digital Downloads (EDD) Simple Shipping WordPress extension contains a Cross-Site Scripting (XSS) vulnerability caused by misuse of the add_query_arg function, which fails to properly sanitize URL parameters before output. This allows authenticated attackers with contributor-level or higher permissions to inject malicious JavaScript code that executes in the context of other users' browsers.

MitigationUpdate the EDD Simple Shipping extension to version 1.8.7, 1.9.10, 2.0.5, 2.1.11, 2.2.9, or 2.3.7 or later, which properly escape output when using add_query_arg.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Easy Digital DownloadsWordPress extension
Affected:>= 1.8, < 1.8.7>= 1.9, < 1.9.10>= 2.0, < 2.0.5>= 2.1, < 2.1.11>= 2.2, < 2.2.9>= 2.3, < 2.3.7
Simple ShippingApplication
Affected:all versions

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify Easy Digital Downloads installation
    In WordPress admin, go to Plugins > Installed Plugins and look for 'Easy Digital Downloads' by Awesomemotive. Note the version number displayed under the plugin name.
    Affected if The plugin is installed and its version falls within any of these ranges: >= 1.8 and < 1.8.7; >= 1.9 and < 1.9.10; >= 2.0 and < 2.0.5; >= 2.1 and < 2.1.11; >= 2.2 and < 2.2.9; >= 2.3 and < 2.3.7.
  2. Check for Simple Shipping extension
    In WordPress admin, go to Downloads > Settings > Extensions, or check the Plugins list for a plugin named 'Simple Shipping' by 'Easy Digital Downloads' or 'Easydigitaldownloads'.
    Affected if The Simple Shipping extension is installed and active, regardless of version.
  3. Verify user role configuration
    In WordPress admin, go to Users > Users and review the roles assigned to each user account. Specifically identify any users with 'Contributor', 'Author', 'Editor', or Administrator roles.
    Affected if There exists at least one user account with Contributor-level or higher permissions, as this role is required to exploit the vulnerability.
  4. Inspect for suspicious URL parameters in admin pages
    When viewing any EDD admin pages (particularly settings pages under Downloads), examine the browser address bar for any unusual query parameters in the URL. Also check server access logs for requests to /wp-admin/ containing query arguments that may contain script tags or encoded JavaScript.
    Affected if Any URL parameters passed to add_query_arg functions on EDD admin pages are not properly escaped before output, indicating the vulnerable code is present.

You are affected if Easy Digital Downloads is installed with a version matching the affected ranges AND the Simple Shipping extension is active AND at least one user with Contributor-level or higher access exists in WordPress.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Upgrade available Upgrade to 1.8.7 / 1.9.10 / 2.0.5 or later
Fixed in 1.8.71.9.102.0.5
Interim mitigation

Update the EDD Simple Shipping extension to version 1.8.7, 1.9.10, 2.0.5, 2.1.11, 2.2.9, or 2.3.7 or later, which properly escape output when using add_query_arg.

Fix this in Easy Digital Downloads Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,060
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,696.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2015-9527 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data