CVE-2023-3757 — A vulnerability classified as problematic has been found in GZ Scripts Car Renta

A vulnerability classified as problematic has been found in GZ Scripts Car Rental Script 1.8. Affected is an unknown function of the file /EventBookingCalendar/load.php?controller=GzFront/action=checkout/cid=1/layout=calendar/show_header=T/local=3. The manipulation of the argumen

01What is this vulnerability?

A vulnerability classified as problematic has been found in GZ Scripts Car Rental Script 1.8. Affected is an unknown function of the file /EventBookingCalendar/load.php?controller=GzFront/action=checkout/cid=1/layout=calendar/show_header=T/local=3. The manipulation of the argument first_name/second_name/phone/address_1/country leads to cross site scripting. It is possible to launch the attack…

02Affected products

No structured affected-product list available — see references below for vendor advisories.

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-07-19 (3 years ago)
• Last modified: 2026-06-17

09References

No additional references available in the KB record.