8.6
HIGH CVSS 3.1
CVE-2026-13138
Improper Authorization in Divasoft Software's Biletiva Ticketing Platform
Description

Client-Side Enforcement of Server-Side Security vulnerability in Divasoft Software and E-Commerce Inc. Biletiva Ticketing Platform allows Manipulating State. This issue affects Biletiva Ticketing Platform: through 2026-07-23.

INFO

Published Date :

Oct. 13, 2026, 9:17 a.m.

Last Modified :

Oct. 13, 2026, 9:17 a.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-13138 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH ca940d4e-fea4-4aa2-9a58-591a58b1ce21
CVSS 3.1 HIGH MITRE-CVE
CVSS 3.1 HIGH [email protected]
Solution
Ensure server-side security controls are enforced on the server, not the client.
  • Implement server-side validation for all critical actions.
  • Do not trust client-side input or controls.
  • Update software to enforce server-side security.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-13138.

URL Resource
https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1309
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-13138 is associated with the following CWEs:

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-13138 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-13138 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Oct. 13, 2026

    Action Type Old Value New Value
    Added Description Client-Side Enforcement of Server-Side Security vulnerability in Divasoft Software and E-Commerce Inc. Biletiva Ticketing Platform allows Manipulating State. This issue affects Biletiva Ticketing Platform: through 2026-07-23.
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
    Added CWE CWE-602
    Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/13xxx/CVE-2026-13138.json">CVE-2026-13138</a>
    Added Reference https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1309
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.