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🐘 Packagist

GHSA-gf8j-v8x5-h9qp

HIGH

GHSA-gf8j-v8x5-h9qp is a high-severity (CVSS 7.5) Cross-site Scripting (XSS) vulnerability in enshrined/svg-sanitize. O3 Security confirms whether GHSA-gf8j-v8x5-h9qp is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

XSS in enshrined/svg-sanitize due to mishandled script and data values in attributes

Also known asCVE-2019-18857
Published
Jan 8, 2020
Updated
Nov 8, 2023
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed

Blast Radius

1 pkg affected
🐘enshrined/svg-sanitize

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

enshrined/svg-sanitize before 0.12.0 mishandles script and data values in attributes, as demonstrated by unexpected whitespace such as in the javascript :alert substring.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistenshrined/svg-sanitizeall versions0.12.0

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for enshrined/svg-sanitize. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update enshrined/svg-sanitize to 0.12.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-gf8j-v8x5-h9qp is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether GHSA-gf8j-v8x5-h9qp is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-gf8j-v8x5-h9qp. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

enshrined/svg-sanitize before 0.12.0 mishandles script and data values in attributes, as demonstrated by unexpected whitespace such as in the javascript	:alert substring.
O3 Security · Impact-Aware SCA

Is GHSA-gf8j-v8x5-h9qp in your dependencies?

O3 detects GHSA-gf8j-v8x5-h9qp across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.