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Spell CheckerApplication · W3

CVE-2014-125108

MEDIUM · 6.1 CVSS v3.1 Published 2023-12-23
Fix available
A fix is available. Upgrade to 2014-01-31 or later.
See remediation →
68/100
Remediation priority · Elevated
Remotely reachable No privileges Patch available

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 · unedited
A vulnerability was found in w3c online-spellchecker-py up to 20140130. It has been rated as problematic. This issue affects some unknown processing of the file spellchecker. The manipulation leads to cross site scripting. The attack may be initiated remotely. The complexity of an attack is rather high. The exploitation is known to be difficult. The identifier of the patch is d6c21fd8187c5db2a50425ff80694149e75d722e. It is recommended to apply a patch to fix this issue. The identifier VDB-248849 was assigned to this vulnerability.

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
How this class of weakness works · CWE-79

Untrusted input is placed into a web page without being neutralised, so an attacker's markup or script executes in another user's browser. That can hijack sessions, capture keystrokes, or silently perform actions as the victim. Fixing it properly means context-aware output encoding everywhere data meets HTML, backed by a content-security policy as a second line of defence.

General guidance for the cross-site scripting (xss) class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

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
Spell CheckerApplication
Affected:< 2014-01-31

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
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

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 · scoped
Upgrade available Upgrade to 2014-01-31 or later
Fixed in 2014-01-31
Vendor patch github.com →
Recommended fix Moderate confidence

Apply patch commit d6c21fd8187c5db2a50425ff80694149e75d722e (or use version post-2014-01-31)

  1. 1. Navigate to the project repository at github.com/w3c/online-spellchecker-py
  2. 2. Locate and review the patch commit d6c21fd8187c5db2a50425ff80694149e75d722e to understand the XSS vulnerability fix
  3. 3. Apply the patch commit d6c21fd8187c5db2a50425ff80694149e75d722e to your local copy of the repository
  4. 4. After applying the patch, verify the fix addresses the cross-site scripting vulnerability in the spellchecker file
  5. 5. Test the application to ensure the patch does not introduce any regressions
  6. 6. Redeploy the patched version to production

Generated from the published advisory — verify against the referenced sources before acting.

We can perform the upgrade in your staging environment and verify nothing breaks — typical engagement from $900. Get the upgrade done

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2014-125108 in production — separate from our analysis above.

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