BlocksyWordPress extension · Creativethemes
CVE-2024-24871
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 creativethemeshq Blocksy blocksy.This issue affects Blocksy: from n/a through <= 2.0.19.
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 confidenceStored Cross-site Scripting (XSS) vulnerability in the Blocksy WordPress theme (versions through 2.0.19). The theme fails to properly sanitize user input during web page generation, allowing authenticated attackers with low privileges to inject malicious JavaScript that executes in the browsers of administrators viewing affected pages.
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
BlocksyWordPress extension
<= 2.0.19CVSS 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.
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Identify Blocksy theme versionNavigate to Appearance > Themes in WordPress admin dashboard. Locate the Blocksy theme and note the version number displayed.Affected if Version is 2.0.19 or lower
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Confirm Blocksy theme is activeIn WordPress admin, go to Appearance > Themes and verify if Blocksy is the currently active theme.Affected if Blocksy theme is active on the site
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Check user role permissionsNavigate to Users > All Users. Identify users with Subscriber, Contributor, or Author roles. These are considered low-privilege users.Affected if Low-privilege users exist on the site who could potentially access theme configuration
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Inspect theme customizer accessLog in as a low-privilege user (Subscriber/Author) and attempt to access Appearance > Customize or theme-specific options panels.Affected if Low-privilege users can access theme customizer or theme option panels
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Review rendered page source for injected scriptsView source of publicly accessible pages. Search for <script> tags or event handlers (onload, onerror, onclick) in areas where user input is displayed, particularly in theme-rendered elements like header, footer, or widget areas.Affected if Suspicious script tags or event handlers are present in page source originating from theme output
Site is affected if Blocksy theme version 2.0.19 or lower is active and low-privilege users can inject unsanitized content into theme-rendered pages.
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 dataUpdate Blocksy theme to version 2.0.20 or later. If immediate update is not feasible, implement web application firewall rules to filter malicious payloads and restrict low-privilege users from accessing theme configuration areas.
Fix this in Blocksy
Scoped from the published advisory
- Consultation2.0 h
- Implementation1.0 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 $1,696.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-24871 — 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-2024-24871 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
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