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MEDIUM severity

GHSA-rp42-c45j-g46x

MEDIUMFix: yetiforcecompany/yetiforcecrm@a062d3d

GHSA-rp42-c45j-g46x is a medium-severity (CVSS 5.3) Cross-site Scripting (XSS) vulnerability in yetiforce/yetiforce-crm. 1 public exploit reference exists, so weaponization risk is real. O3 Security confirms whether GHSA-rp42-c45j-g46x is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

yetiforcecrm is vulnerable to Cross-site Scripting

Also known asCVE-2021-4107
Published
Dec 16, 2021
Updated
Nov 8, 2023
Affected
1 pkg
Patched
None yet
Exploits
1 known
Exploitation data as of Aug 23, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
0.8%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs53th percentile — riskier than 53% of all scored CVEsHighest risk

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

How urgent is this, really

GHSA-rp42-c45j-g46x plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.

Where this sits among everything scored

Of 365,950 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.

Real-World Exposure

1 pkg affected
🐘yetiforce/yetiforce-crm

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

yetiforcecrm is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').

Affected Packages

1 total
EcosystemPackageVulnerable rangeFix
🐘Packagistyetiforce/yetiforce-crmall versionsNo fix
Exploits & PoCs
1

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for yetiforce/yetiforce-crm. 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. Remediation status

    No patched version of yetiforce/yetiforce-crm has shipped for GHSA-rp42-c45j-g46x yet. Where your build allows, override or pin the dependency away from the vulnerable range, and apply any maintainer-recommended mitigation.

  3. Mitigate without a patch

    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-rp42-c45j-g46x 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-rp42-c45j-g46x. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

yetiforcecrm is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
O3 Security · Impact-Aware SCA

Is GHSA-rp42-c45j-g46x in your dependencies?

O3 detects GHSA-rp42-c45j-g46x across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

GHSA-rp42-c45j-g46x: yetiforcecrm is… | O3 Security