CVE-2026-48885
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 HollerBox <= 2.3.10.1 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 the HollerBox WordPress plugin affecting versions 2.3.10.1 and below. An attacker without authentication can inject malicious JavaScript code through vulnerable input fields, potentially compromising other users or administrators viewing the affected pages.
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
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/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 if HollerBox plugin is installedIn WordPress admin, go to Plugins > Installed Plugins and look for HollerBox in the list. Alternatively, check the /wp-content/plugins/ directory for a hollerbox folder.Affected if Plugin is installed and active
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Determine the installed version of HollerBoxIn WordPress admin, go to Plugins > Installed Plugins, find HollerBox, and read the version number displayed beneath the plugin name. You can also check the version in the plugin's main PHP file header (usually hollerbox.php) in /wp-content/plugins/hollerbox/Affected if Version is 2.3.10.1 or below (any version up to and including 2.3.10.1)
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Confirm the plugin is activeIn Plugins > Installed Plugins, verify that HollerBox shows as 'Active' under the plugin status column.Affected if Plugin is active (inactive plugins cannot be exploited through this vector)
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Identify accessible input fieldsVisit the HollerBox configuration pages or frontend forms served by the plugin. Since this is an unauthenticated XSS, the vulnerable fields are accessible without login. Check pages where user input is accepted (such as pop-up configuration or form submission endpoints).Affected if Unauthenticated visitors can submit input through HollerBox forms or configuration interfaces
You are affected if HollerBox plugin is installed, active, and running version 2.3.10.1 or below with unauthenticated input fields accessible on your site.
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 HollerBox plugin to the latest version immediately. If unable to update, consider disabling the plugin until a patch is available.
Upgrade to the latest HollerBox version (2.3.10.2 or later)
- Navigate to WordPress admin dashboard
- Go to Plugins > Installed Plugins
- Find HollerBox plugin
- Click 'Update now' if an update is available, or manually download the latest version from wordpress.org and upload it
- Verify the updated version is above 2.3.10.1
Generated from the published advisory — verify against the referenced sources before acting.
- 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-2026-48885 — 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-2026-48885 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