# CVE-2026-19050: ProSolution WP Client SSRF in URL validation

Source: https://junglewise.ai/threats/cve-2026-19050-prosolution-wp-client-ssrf-in-url-validation  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-12. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-19050 · Severity: medium · CVSS 6.4 · Published 2026-08-12

The ProSolution WP Client WordPress plugin allows authenticated users (including subscribers) to make arbitrary HTTP requests to internal networks through a vulnerable URL validation function. An attacker with a subscriber account can bypass internal firewalls, enumerate internal services, and potentially modify or delete data on internal systems by injecting custom HTTP requests.

Technologies: [ProSolution WP Client](https://junglewise.ai/threats/technologies/wp-client). Vendors: [ProSolution](https://junglewise.ai/threats/vendors/prosolution).

## Quick answers

**Is CVE-2026-19050 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-19050 being exploited in the wild.

**How severe is CVE-2026-19050?** Medium severity, with a CVSS score of 6.4, published 12 August 2026.

**Which products and versions are affected?** ProSolution WP Client before 2.0.9.

**Is there a fix for CVE-2026-19050?** A patch was published on 2026-08-12: Fixed in version 2.0.9 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-19050 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-19050?** Check whether you run ProSolution WP Client at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The plugin's proSol_url_validate AJAX action does not validate user-supplied URLs or check user capabilities/nonce before performing server-side HTTP requests. An authenticated attacker can exploit this server-side request forgery (SSRF) vulnerability by crafting malicious requests to internal hosts. The userval parameter is concatenated unsanitized into request headers, allowing CRLF injection to append arbitrary HTTP requests and methods (e.g., DELETE) to internal services. Exploitation requires only an authenticated account (subscriber level) and no special configuration. The vulnerability was patched in version 2.0.9.

## Affected products

- ProSolution WP Client before 2.0.9

## Timeline

- 2026-08-10: disclosed
- 2026-08-12: patched: Fixed in version 2.0.9

## References

- [https://wpscan.com/vulnerability/76d9ef00-5335-4373-903c-4ff368417f94/](https://wpscan.com/vulnerability/76d9ef00-5335-4373-903c-4ff368417f94/)

## Related threats

- [ProSolution WP Client SQL injection via jobID parameter](https://junglewise.ai/threats/cve-2026-19053-prosolution-wp-client-sql-injection-via-jobid-parameter)
- [ProSolution WP Client SQL injection via removesite cookie](https://junglewise.ai/threats/cve-2026-19049-prosolution-wp-client-sql-injection-via-removesite-cookie)