CVE-2025-48007
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 Encoding or Escaping of Output vulnerability in Hallo Welt! GmbH BlueSpice (Extension:BlueSpiceAvatars) allows Cross-Site Scripting (XSS). This issue affects BlueSpice: from 5 through 5.1.1.
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 Scripting (XSS) vulnerability in the BlueSpiceAvatars extension of BlueSpice due to improper encoding or escaping of output. Attackers can inject malicious scripts through avatar-related functionality that are rendered without proper sanitization, affecting BlueSpice versions 5 through 5.1.1.
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>= 5.0, < 5.1.2CVSS 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
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/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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Check BlueSpice versionNavigate to the wiki's Special:Version page or check the BlueSpice installation directory for the version file. On the command line, you can also check the version file if you have shell access.Affected if The installed version is >= 5.0 and < 5.1.2
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Verify BlueSpiceAvatars extension is enabledNavigate to Special:Version in your wiki to list all installed extensions. Look for 'BlueSpiceAvatars' in the extensions list.Affected if BlueSpiceAvatars appears as an active extension on Special:Version
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Check avatar upload functionality is accessibleNavigate to your user preferences or profile settings page where avatar upload or customization options are presented. This is typically found in the user profile or settings area.Affected if Users can upload or modify avatars through the wiki interface
You are affected if you are running BlueSpice version 5.0 through 5.1.1 with the BlueSpiceAvatars extension enabled and users can access avatar-related functionality.
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 · scoped5.1.2
Upgrade to a patched version of BlueSpice that addresses the encoding vulnerability in BlueSpiceAvatars. Alternatively, implement proper output encoding at all user-controlled output points within the extension.
BlueSpice 5.1.2
- Back up your current BlueSpice installation and database before upgrading
- Download BlueSpice version 5.1.2 from the official source at en.wiki.bluespice.com
- Follow the standard BlueSpice upgrade procedure for your installation method (manual or package manager)
- After upgrading, clear any cached data
- Verify that the BlueSpiceAvatars extension is working correctly and the XSS vulnerability is resolved
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 h
- Testing6.0 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 $3,808.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-48007 — 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-2025-48007 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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