CVE-2015-9523
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 · uneditedThe Easy Digital Downloads (EDD) Recommended Products 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 confidenceThe Easy Digital Downloads Recommended Products extension for WordPress contains a Cross-Site Scripting (XSS) vulnerability caused by improper use of the add_query_arg function, which fails to properly sanitize URL parameters before outputting them in HTML context.
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>= 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, < 2.3.7all versionsCVSS 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 checksWork through these to decide whether this CVE applies to you.
-
Locate the Easy Digital Downloads pluginCheck the wp-content/plugins/ directory for a folder named 'easy-digital-downloads' or 'easy-digital-downloads/easy-digital-downloads.php'. In WordPress admin, go to Plugins > Installed Plugins and look for 'Easy Digital Downloads'.Affected if The plugin is not found, meaning it is not installed.
-
Determine the installed version of Easy Digital DownloadsOpen the main plugin file (typically easy-digital-downloads/easy-digital-downloads.php) and look for the 'Version:' header in the plugin comment block at the top. Alternatively, in WordPress admin, the version is displayed on the Plugins > Installed Plugins page next to the plugin name.Affected if The 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.
-
Locate the Recommended Products extensionCheck the wp-content/plugins/ directory for a folder containing 'recommended-products' or check WordPress admin under Plugins > Installed Plugins for a plugin named 'Easy Digital Downloads - Recommended Products' or similar.Affected if The Recommended Products extension is found and installed (all versions are affected per the CVE).
The environment is affected if Easy Digital Downloads is installed with a version matching the affected ranges AND the Recommended Products extension is present, since both conditions are required for this XSS vulnerability to exist.
Generated from the published advisory. Verify against your own configuration.
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 data1.8.71.9.102.0.5
Update the Easy Digital Downloads plugin to version 1.8.7, 1.9.10, 2.0.5, 2.1.11, 2.2.9, or 2.3.7 or later to include the patched code that properly escapes URL parameters.
- Consultation1.0 h
- Implementation1.0 h
- Testing1.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,200.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2015-9523 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2015-9523 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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.
- 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