CVE-2026-39451
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 · uneditedUnauthenticated Cross Site Scripting (XSS) in WP Google Review Slider <= 18.0 versions.
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 · moderate confidenceUnauthenticated Cross Site Scripting (XSS) vulnerability in WP Google Review Slider plugin versions 18.0 and below. Attackers can inject malicious scripts into the plugin without authentication, likely through unvalidated input fields that render user-supplied content without proper sanitization.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
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
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
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.
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Check the installed version of WP Google Review SliderNavigate to WordPress Admin > Plugins > Installed Plugins, locate 'WP Google Review Slider' or 'WP Google Review Slider Pro', and read the version number displayedAffected if The displayed version is 18.0 or any lower version number (e.g., 17.9, 17.0, 1.0)
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Confirm the plugin is activeIn the same Plugins screen, verify the plugin status shows as 'Active' rather than 'Inactive' or 'Network Active'Affected if The plugin is currently active and accessible to visitors on the site
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Identify if the plugin's public-facing shortcodes or widgets are in useCheck your pages, posts, or widget areas for the plugin shortcode (commonly [wprev_slider] or similar) or any Google Review Slider widgets that display reviews publiclyAffected if The plugin shortcode or widget is present on any publicly accessible page, as unauthenticated attackers can inject scripts through these display mechanisms
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Review any third-party review import or API settingsLook in the plugin settings area for any options that fetch or import reviews from Google, as the vulnerability stems from unvalidated input fields that render user-supplied contentAffected if The plugin has settings that accept or display external review data without sanitization
Your environment is affected if WP Google Review Slider version 18.0 or below is installed and active on your WordPress site, with its public-facing features enabled.
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.
dbcve · scopedUpdate WP Google Review Slider to the latest version to receive the security patch. If immediate update is not possible, consider disabling the plugin or implementing WAF rules to block XSS attack vectors.
WP Google Review Slider version 18.1 or later
- 1. Back up your WordPress site before performing any updates
- 2. Navigate to WordPress admin dashboard > Plugins
- 3. Find WP Google Review Slider plugin
- 4. Check if an update is available (look for version higher than 18.0)
- 5. If update available, click 'Update Now' to upgrade to the latest version
- 6. After update, verify the plugin is functioning correctly
- 7. Test that the Google Reviews are displaying properly on your site
Generated from the published advisory — verify against the referenced sources before acting.
- 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-2026-39451 — 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-2026-39451 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
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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