CVE-2025-27356
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 · uneditedMissing Authorization vulnerability in Hardik Sticky Header On Scroll sticky-header-on-scroll allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Sticky Header On Scroll: from n/a through <= 1.0.
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 · moderate confidenceThis is a missing authorization vulnerability (CWE-862) in the Hardik Sticky Header On Scroll WordPress plugin. The plugin fails to properly enforce access control checks on certain functions or endpoints, allowing unauthenticated or low-privileged users to perform actions that should require higher privileges. Attackers can exploit incorrectly configured access control security levels to access sensitive functionality.
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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/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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Confirm plugin installation and versionLocate the plugin directory (typically wp-content/plugins/) and read the main plugin file header to extract the Version field. Alternatively, check via WordPress admin dashboard under Plugins > Installed Plugins.Affected if The plugin 'Hardik Sticky Header On Scroll' is installed and the installed version falls within any known vulnerable version range.
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Identify plugin AJAX endpointsSearch the plugin files for 'add_action' calls registering wp_ajax_ and wp_ajax_nopriv_ hooks. These define endpoints accessible from the browser. Typical pattern: add_action('wp_ajax_nopriv_{action_name}', 'function_name')Affected if The plugin exposes AJAX endpoints registered with wp_ajax_nopriv_ hooks, allowing unauthenticated access to plugin functionality.
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Verify authorization on sensitive functionsExamine the plugin PHP files for the presence of WordPress capability checks before performing sensitive operations. Look for current_user_can() or similar authorization functions called within AJAX handlers and other sensitive functions.Affected if Sensitive plugin functions (especially those hooked to AJAX endpoints) lack proper current_user_can() authorization checks.
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Inspect plugin configuration filesReview the plugin settings and configuration files (often in the plugin directory or WordPress options table) to identify if sensitive options can be modified without admin privileges.Affected if Plugin settings related to header display or scroll behavior can be modified by users lacking administrator capabilities.
Your environment is affected if the Hardik Sticky Header On Scroll plugin is installed and its AJAX endpoints or sensitive functions lack proper WordPress capability checks (current_user_can()) to verify user authorization.
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 dataAdd proper authorization checks (using WordPress capability checks like current_user_can()) to all sensitive plugin functions and AJAX endpoints. If no patched version is available from the vendor, consider removing the plugin or implementing a Web Application Firewall rule to block unauthorized access.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-27356 — 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-2025-27356 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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- 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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