How severe is GHSA-8gv3-3j7f-wg94?

GHSA-8gv3-3j7f-wg94 has a CVSS score of 8.7/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by GHSA-8gv3-3j7f-wg94?

GHSA-8gv3-3j7f-wg94 affects the following packages: nette/application (Packagist), nette/application (Packagist), nette/application (Packagist), nette/application (Packagist), nette/application (Packagist), nette/application (Packagist). Ecosystems affected: Packagist.

How do I fix GHSA-8gv3-3j7f-wg94?

Update nette/application to version 2.2.10 or later. Run your dependency manager's update command and verify no transitive dependencies pin the vulnerable version. Use O3 Security's SCA scanner to confirm the fix is applied across your entire dependency tree.

Is GHSA-8gv3-3j7f-wg94 actively exploited in the wild?

Yes. There are 2 known exploit references for GHSA-8gv3-3j7f-wg94, including 1 in-the-wild exploitation observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for GHSA-8gv3-3j7f-wg94?

GHSA-8gv3-3j7f-wg94 has an EPSS (Exploit Prediction Scoring System) score of 93.8%, placing it in the 100th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

What type of vulnerability is GHSA-8gv3-3j7f-wg94?

GHSA-8gv3-3j7f-wg94 is classified as CWE-74 (CWE-74), Code Injection (CWE-94). These weakness types describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

Is there exploit tooling available for GHSA-8gv3-3j7f-wg94?

A Nuclei detection template exists for GHSA-8gv3-3j7f-wg94, meaning automated scanners can fingerprint it. Public exploit tooling significantly increases real-world risk — prioritize patching and ensure detection coverage. Exploit tooling should only ever be used in isolated, authorized testing environments.

When was GHSA-8gv3-3j7f-wg94 published, and has it been updated?

GHSA-8gv3-3j7f-wg94 was published on October 2, 2020 and was last updated on March 13, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐘 Packagist

GHSA-8gv3-3j7f-wg94

HIGH

Potential Remote Code Execution vulnerability

Also known asCVE-2020-15227

Published

Oct 2, 2020

Updated

Mar 13, 2026

Affected

6 pkgs

Patched

6 / 6

Exploits

2 known

EPSS Exploitation Probability

via FIRST.org ↗

93.8%probability of exploitation in next 30 days

Very High Risk100th percentile0.00%

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.

Blast Radius

6 pkgs affected

🐘nette/application🐘nette/application🐘nette/application🐘nette/application🐘nette/application🐘nette/application

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

Reported by Cyku Hong from DEVCORE (https://devco.re)

Impact

Code injection, possible remote code execution.

Patches

Fixed in nette/application 2.2.10, 2.3.14, 2.4.16, 3.0.6 and nette/nette 2.0.19 and 2.1.13

Affected Packages

6 total 6 fixed

Ecosystem	Package	Vulnerable range	Fix
🐘Packagist	`nette/application`	≥ 2.2.0&&< 2.2.10	2.2.10
🐘Packagist	`nette/application`	≥ 2.3.0&&< 2.3.14	2.3.14
🐘Packagist	`nette/application`	≥ 2.4.0&&< 2.4.16	2.4.16
🐘Packagist	`nette/application`	≥ 3.0.0&&< 3.0.6	3.0.6
🐘Packagist	`nette/application`	≥ 2.0.0&&< 2.0.19	2.0.19
🐘Packagist	`nette/application`	≥ 2.1.0&&< 2.1.13	2.1.13

Exploits & PoCs

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

Nette versions before 2.0.19, 2.1.13, 2.2.10, 2.3.14, 2.4.16, 3.0.6 are …

github.comGithubOct 2020

Frequently Asked Questions

Packages nette/application versions prior to 2.2.10, 2.3.14, 2.4.16, 3.0.6 and nette/nette versions prior to 2.0.19 and 2.1.13 are vulnerable to an code injection attack by passing specially formed parameters to URL that may possibly leading to RCE. Reported by Cyku Hong from DEVCORE (https://devco.re) ### Impact Code injection, possible remote code execution. ### Patches Fixed in nette/application 2.2.10, 2.3.14, 2.4.16, 3.0.6 and nette/nette 2.0.19 and 2.1.13

O3 Security · Impact-Aware SCA

Is GHSA-8gv3-3j7f-wg94 in your stack?

O3 detects GHSA-8gv3-3j7f-wg94 across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

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