CVE-2025-58688
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 · uneditedCross-Site Request Forgery (CSRF) vulnerability in Casengo Casengo Live Chat Support the-casengo-chat-widget allows Stored XSS.This issue affects Casengo Live Chat Support: from n/a through <= 2.1.4.
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 confidenceCross-Site Request Forgery (CSRF) vulnerability in the Casengo Live Chat Support WordPress plugin (the-casengo-chat-widget) allows unauthenticated attackers to craft malicious requests that result in Stored XSS. The widget lacks proper CSRF token validation on state-changing endpoints, enabling attackers to inject persistent malicious scripts via the chat widget interface.
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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Verify Casengo Live Chat plugin is installedCheck WordPress plugins directory for 'the-casengo-chat-widget' or 'Casengo Live Chat Support' in wp-content/plugins/ or via WordPress admin plugins listAffected if Plugin is installed and active
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Identify installed plugin versionRead the main plugin file (e.g., casengo-chat-widget.php) and locate the 'Version' header in the plugin comment block, or check via WordPress admin plugin pageAffected if Version cannot be determined or falls within an affected version range
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Confirm chat widget is enabled and publicly accessibleVisit the website homepage and inspect page source for the casengo chat widget JavaScript (search for 'casengo' or 'live-chat' in script tags), or check plugin settings for enabled statusAffected if Chat widget is actively loaded on public pages
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Inspect widget endpoints for CSRF protectionUse browser dev tools or proxy to capture a chat widget state-changing request (e.g., sending a message, updating settings), then check if the request includes a CSRF token or nonce parameter and if the server validates origin/referer headersAffected if State-changing requests lack CSRF token validation and do not validate request origin
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Check for stored malicious scripts in chat dataQuery the WordPress database for any suspicious script tags or JavaScript events in chat message tables (search tables related to the plugin for <script, javascript:, onload, onerror attributes)Affected if Stored XSS payloads exist in chat widget data
User is affected if the Casengo Live Chat Support plugin is installed with an affected version, the widget is enabled on public pages, state-changing endpoints lack CSRF token validation, or stored XSS payloads are already present in chat data.
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 dataImplement anti-CSRF tokens (nonces) on all POST/PUT/DELETE endpoints and validate request origin/referer headers to prevent forged requests leading to stored XSS.
- Consultation2.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,664.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-58688 — 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-2025-58688 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
- No spam, self-promotion, credentials, or personal data