# CVE-2026-5783: Beyaz Computer CityPLus reflected XSS

Source: https://junglewise.ai/threats/cve-2026-5783-beyaz-computer-cityplus-reflected-xss  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-20. Updated: 2026-05-20  
License: CC BY 4.0 with a link back

CVE-2026-5783 · Severity: high · CVSS 7.6 · Published 2026-05-20

CityPLus, a software solution by Beyaz Computer, is vulnerable to a security flaw that allows attackers to inject malicious scripts into web pages viewed by other users. If a user clicks a specially crafted link, an attacker could potentially steal session information, perform actions on behalf of the user, or disrupt the application's availability. This issue has been addressed in version V24.29750.1.0.

Technologies: [Beyaz Computer Software Design Industry and Trade Ltd. Co. CityPLus](https://junglewise.ai/threats/technologies/cityplus). Vendors: [Beyaz Computer Software Design Industry and Trade Ltd. Co.](https://junglewise.ai/threats/vendors/beyaz-computer-software-design-industry-and-trade-ltd-co).

## Quick answers

**Is CVE-2026-5783 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-5783 being exploited in the wild.

**How severe is CVE-2026-5783?** High severity, with a CVSS score of 7.6, published 20 May 2026.

**Which products and versions are affected?** Beyaz Computer Software Design Industry and Trade Ltd. Co. CityPLus before V24.29750.1.0.

**Is there a fix for CVE-2026-5783?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-5783 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-5783?** Check whether you run Beyaz Computer Software Design Industry and Trade Ltd. Co. CityPLus 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

A Reflected Cross-Site Scripting (XSS) vulnerability exists in Beyaz Computer CityPLus versions prior to V24.29750.1.0. The application fails to properly neutralize user-supplied input before including it in generated web pages (CWE-79). An unauthenticated remote attacker can exploit this by tricking a user into clicking a malicious link, leading to the execution of arbitrary JavaScript in the context of the victim's browser session. This can result in unauthorized access to sensitive data, session hijacking, or impact on service availability. The vulnerability is patched in version V24.29750.1.0.

## Affected products

- Beyaz Computer Software Design Industry and Trade Ltd. Co. CityPLus before V24.29750.1.0

## Timeline

- 2026-05-20: disclosed
- 2026-05-20: advisory

## References

- [https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0263](https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0263)