Description
Nette versions before 2.0.19, 2.1.13, 2.2.10, 2.3.14, 2.4.16, 3.0.6 are vulnerable to an code injection attack by passing specially formed parameters to URL that may possibly leading to RCE. Nette is a PHP/Composer MVC Framework.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| nette | application | >= 2.0.0, < 2.0.19, >= 2.1.0, < 2.1.13, >= 2.2.0, < 2.2.10, >= 2.3.0, < 2.3.14, >= 2.4.0, < 2.4.16, >= 3.0.0, < 3.0.6 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 9 | php-nette | 2.4-20160731-1+deb9u1 | DLA-2617-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | php-nette | 2.4-20160731-1ubuntu0.1 | USN-5983-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | php-nette | 2.3.8-1ubuntu1+esm1 | USN-5983-1 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
GitHub 3 repositories
-
hu4wufu/CVE-2020-15227 ★ 20 · Oct 10, 2020
CVE-2020-15227 exploit
-
filipsedivy/CVE-2020-15227 ★ 1 · Nov 15, 2020
CVE-2020-15227 checker
-
Langriklol/CVE-2020-15227 ★ 1 · Oct 9, 2020
CVE-2020-15227 exploit
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Automated scanner template
A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.
- Nette Framework - Remote Code Execution http/cves/2020/CVE-2020-15227.yaml
Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Packagist | nette/application | >= 2.2.0, < 2.2.10 | 2.2.10 | GHSA-8gv3-3j7f-wg94 |
| Packagist | nette/application | >= 2.3.0, < 2.3.14 | 2.3.14 | GHSA-8gv3-3j7f-wg94 |
| Packagist | nette/application | >= 2.4.0, < 2.4.16 | 2.4.16 | GHSA-8gv3-3j7f-wg94 |
| Packagist | nette/application | >= 3.0.0, < 3.0.6 | 3.0.6 | GHSA-8gv3-3j7f-wg94 |
| Packagist | nette/application | >= 2.0.0, < 2.0.19 | 2.0.19 | GHSA-8gv3-3j7f-wg94 |
| Packagist | nette/application | >= 2.1.0, < 2.1.13 | 2.1.13 | GHSA-8gv3-3j7f-wg94 |
Advisories 2
- USN-5983-1 php-nette vulnerability Ubuntu Security Notices (USN) · Jun 25, 2026
- DLA-2617-1 php-nette - security update Debian Security (DSA / DLA) · Mar 9, 2026