CVE-2025-26759
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 alexvtn Content Snippet Manager content-snippet-manager allows Stored XSS.This issue affects Content Snippet Manager: from n/a through <= 1.1.5.
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 Content Snippet Manager plugin versions <=1.1.5 allows unauthenticated attackers to trick authenticated administrators into submitting malicious requests that result in stored XSS, enabling session hijacking and privilege escalation when other users view the compromised content snippets.
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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Identify if Content Snippet Manager plugin is installedCheck your CMS plugin directory for a plugin named Content Snippet Manager, or search for files containing 'content-snippet' in your plugins folderAffected if The plugin is present in the system
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Determine the installed versionAccess the plugin settings or details page in your admin panel to view the version number, or open the main plugin PHP file and look for a version constant or header commentAffected if The installed version is 1.1.5 or lower
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Confirm lack of CSRF protection on snippet operationsExamine the plugin source code for form handlers and AJAX endpoints that create or modify snippets - check if they verify a nonce token or validate the referrer header before processing requestsAffected if No anti-CSRF token validation is performed on snippet creation/editing actions
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Check for improper input handlingTest creating a snippet containing script tags or HTML attributes - then view the snippet in the admin panel or frontend to see if the content is rendered as raw code or executed as JavaScriptAffected if User-supplied snippet content is not sanitized or encoded before storage, and is rendered as executable code when viewed
Your environment is affected if the Content Snippet Manager plugin version is 1.1.5 or lower and lacks CSRF token protection on admin actions that create or modify content snippets, potentially allowing stored XSS attacks.
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 for all state-changing operations (forms and AJAX endpoints) and apply proper input validation and output encoding to prevent stored XSS.
- 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-2025-26759 — 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-2025-26759 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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