CVE-2026-23843 teklifolustur_app's IDOR vulnerability allows unauthorized access to other users' offers
Authenticated users can access other users' quotes by manipulating the offer_id parameter due to missing authorization checks.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-23843?
CVE-2026-23843 is a high-severity missing authorization vulnerability in sibercii6-crypto teklifolustur_app, published on 19 Jan 2026. Any signed-in user can exploit it over the network, with no action from the victim.
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.
Weakness: CWE-639
Which versions are affected by CVE-2026-23843?
How do I fix CVE-2026-23843?
No fix has been published for CVE-2026-23843 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-23843 being exploited?
There is no known exploitation of CVE-2026-23843 in the wild and no public exploit code.
Sources
Also known as GHSA-6h9r-mmg3-cg7m.