# CVE-2019-9082: ThinkPHP - Authentication Bypass

> Live exploitation tracking for CVE-2019-9082 by the CrowdSec Live Exploit Tracker, built from real-world attack data crowdsourced from CrowdSec's global network.

Page: https://tracker.crowdsec.net/cves/CVE-2019-9082

## Key facts

- **Exploitation phase:** Background Noise. Continuous low-level scanning or exploitation attempts are observed, mostly opportunistic and automated.
- **CVSS score:** 8.8
- **Public exploit available:** Yes
- **Affected products:** ThinkPHP
- **Weaknesses:** CWE-306 (Missing Authentication for Critical Function); CWE-94 (Improper Control of Generation of Code ('Code Injection'))
- **Tags:** web_application

## Description

ThinkPHP before 3.2.4, as used in Open Source BMS v1.1.1 and other products, allows Remote Command Execution via public//?s=index/\think\app/invokefunction&function=call_user_func_array&vars[0]=system&vars[1][]= followed by the command.

## CrowdSec analysis

[CVE-2019-9082](https://euvd.enisa.europa.eu/vulnerability/CVE-2019-9082) is a remote command execution vulnerability in ThinkPHP before version 3.2.4, which can be exploited via crafted requests to execute arbitrary system commands. Attackers can leverage this flaw to gain full control over affected servers, potentially leading to data theft, system compromise, or further attacks on connected systems.

CrowdSec has been tracking this vulnerability and its exploits since 7th of January 2026.

CrowdSec network data shows that most actors exploiting CVE-2019-9082 rely on broad, untargeted scans with minimal filtering. The activity is largely automated and opportunistic in nature.
Additionally, according to week-over-week analysis by CrowdSec, exploitation of CVE-2019-9082 is surging. Attack volumes are spiking well above historical norms, indicating widespread and escalating interest from threat actors. CVE-2019-9082 is currently experiencing high visibility and active exploitation across the internet.

Attackers exploit ThinkPHP installations by sending crafted requests to `index.php` with the `s` parameter set to paths like `/Index/\think\app/invokefunction` or `captcha`, abusing the `function` and `filter` parameters to execute arbitrary system commands remotely.

## Timeline

- 2019-02-24: CVE Published. CVE-2019-9082 is published to NVD.
- 2021-11-03: CISA KEV. CVE-2019-9082 is added to the Known Exploited Vulnerabilities catalog by CISA.
- 2022-05-03: CISA Remediation Deadline. Expiration of the CISA remediation deadline as described in [BOD 22-01](https://www.cisa.gov/news-events/directives/bod-22-01-reducing-significant-risk-known-exploited-vulnerabilities).
- 2026-01-07: Rule Released. CrowdSec releases a rule to detect CVE-2019-9082 exploitation attempts against the CrowdSec Network.
- 2026-01-14: CrowdSec First Seen. CrowdSec observes in-the-wild exploitation of CVE-2019-9082 for the first time.

## References

- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-9082
- http://packetstormsecurity.com/files/157218/ThinkPHP-5.0.23-Remote-Code-Execution.html
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2019/CVE-2019-9082.yaml

## Live exploitation data

The [Live Exploit Tracker page](https://tracker.crowdsec.net/cves/CVE-2019-9082) follows observed exploitation activity for CVE-2019-9082. [Request an API key](https://tracker.crowdsec.net/request-api-key) for full access to its exploitation timeline, attacking IP addresses and blocklists.