Vulnerability · Published Jan 19, 2026 · Assigned by GitHub_M

CVE-2026-23843teklifolustur_app's IDOR vulnerability allows unauthorized access to other users' offers

High 7.1

In plain English

A high-severity authorization bypass via user-controlled key in teklifolustur_app from sibercii6-crypto. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities).

Severity (CVSS 3.1)7.1High

Exploit odds (30 days)0.2%top 84.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

teklifolustur_app is a web-based PHP application that allows users to create, manage, and track quotes for their clients. Prior to commit dd082a134a225b8dcd401b6224eead4fb183ea1c, an Insecure Direct Object Reference (IDOR) vulnerability exists in the offer view functionality. Authenticated users can manipulate the offer_id parameter to access offers belonging to other users. The issue is caused by missing authorization checks ensuring that the requested offer belonged to the currently authenticated user. Commit dd082a134a225b8dcd401b6224eead4fb183ea1c contains a patch.

Affected products (as reported)

Vendor	Product	Versions
sibercii6-crypto	teklifolustur_app	< dd082a134a225b8dcd401b6224eead4fb183ea1c

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

References

https://github.com/sibercii6-crypto/teklifolustur_app/security/advisories/GHSA-6h9r-mmg3-cg7m x_refsource_CONFIRM
https://github.com/sibercii6-crypto/teklifolustur_app/commit/dd082a134a225b8dcd401b6224eead4fb183ea1c x_refsource_MISC