Master SliderWordPress extension · Averta
CVE-2025-58025
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 · uneditedImproper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in averta Master Slider master-slider allows Stored XSS.This issue affects Master Slider: from n/a through <= 3.11.0.
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 confidenceA stored Cross-site Scripting (XSS) vulnerability exists in the Master Slider plugin (versions up to 3.11.0) where user-supplied input is not properly neutralized before being rendered in web pages. This allows attackers to inject malicious JavaScript code that executes in the browsers of users viewing the affected slider content.
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
Master SliderWordPress extension
<= 3.11.0CVSS 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
- Low
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/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.
-
Check Master Slider plugin versionNavigate to WordPress admin > Plugins > Installed Plugins > Master Slider. Compare the version number displayed against the affected version range (3.11.0 or lower).Affected if The installed version is 3.11.0 or lower.
-
Identify active Master Slider installationsCheck the WordPress database or wp-admin for any published sliders. Look for posts/pages containing the Master Slider shortcode (e.g., [masterslider id="X"]) or widgets using Master Slider.Affected if Any published slider exists on the site.
-
Review slider content for unsanitized inputAccess slider settings in wp-admin > Master Slider. Inspect text fields, titles, descriptions, or slide content for HTML/script tags. Manually inspect the page source of a published slider to see if input is rendered as raw HTML or properly escaped.Affected if User-supplied text in sliders renders as raw HTML without encoding when viewed on the frontend.
-
Verify user access to slider creationReview WordPress user roles. Check if users with Contributor or Author roles have access to create or edit Master Slider content.Affected if Users with Contributor or Author-level permissions can create or edit sliders.
A user is affected if the Master Slider plugin version is 3.11.0 or lower AND any slider content created by users is rendered on publicly accessible pages without proper sanitization.
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 dataApply the latest vendor patch for Master Slider (version 3.11.1 or later) which includes proper input sanitization and output encoding for all user-supplied data rendered in the slider. Until patched, restrict contributor/author-level access and validate all slider input server-side.
Fix this in Master Slider
Scoped from the published advisory
- Consultation2.0 h
- Implementation3.0 h
- Testing2.0 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 $2,272.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-58025 — 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-2025-58025 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