CVE-2025-58353
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 · uneditedPromptcraft Forge Studio is a toolkit for evaluating, optimizing, and maintaining LLM-powered applications. All versions of Promptcraft Forge Studio sanitize user input using regex blacklists such as r`eplace(/javascript:/gi, '')`. Because the package uses multi-character tokens and each replacement is applied only once, removing one occurrence can create a new dangerous token due to overlap. The “sanitized” value may still contain an executable payload when used in href/src (or injected into the DOM). There is currently no fix for this issue.
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 confidencePromptcraft Forge Studio uses regex blacklist-based sanitization (e.g., r`eplace(/javascript:/gi, '')`) that applies each replacement only once. Because the package handles multi-character tokens, removing one occurrence can create a new dangerous token through character overlap, allowing XSS payloads to persist in href/src attributes or DOM injection contexts.
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
- High
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/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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Identify if promptcraft-forge-studio is installedCheck your package.json or node_modules for the presence of promptcraft-forge-studio package using npm list or by reviewing dependenciesAffected if The package exists in your project dependencies
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Determine installed versionRun npm list promptcraft-forge-studio or check the version field in your package.jsonAffected if The installed version has not been patched for this vulnerability (compare to any released fixed version)
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Locate regex blacklist sanitization codeSearch your codebase for patterns like .replace(/javascript:/gi, '') or similar single-pass blacklist regex replacements applied to user inputAffected if Code uses one-pass regex replacement to sanitize input against XSS vectors
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Verify output context is vulnerableInspect where the sanitized data flows - check if it is inserted into href attributes, src attributes, or used in innerHTML/dominsertion contextsAffected if The sanitized output is rendered in href, src, or DOM injection contexts without additional encoding
You are affected if promptcraft-forge-studio is present and user input sanitized with single-pass regex blacklist replacement is being rendered in href/src attributes or DOM contexts.
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 dataAvoid using this package for handling user input rendered in href/src contexts until a fix is available; implement output encoding or a robust allowlist-based sanitizer (such as DOMPurify) on the consuming application's side as a defensive measure.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-58353 — 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-2025-58353 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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