CVE-2026-36723
Unrestricted file rename via path traversal enables RCE in Bookcars v8.3 API.
Is CVE-2026-36723 being exploited?
Not confirmed. CVE-2026-36723 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 1.00% probability of exploitation in the next 30 days.
How severe is CVE-2026-36723?
CVE-2026-36723 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-36723?
Not known from our data. No patch reference has been recorded for CVE-2026-36723, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-36723 affect?
CVE-2026-36723 affects Bookcars v8.3. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-36723?
Apply vendor patch when released; restrict /api/create-user; implement input validation and WAF rules.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated user can traverse dirs to move/rename files to arbitrary server paths, risking data exposure, overwrite, and remote code execution.
Patch when possible