CVE-2023-3543

Name: CVE-2023-3543
Creator: NVD / NIST
Published: 2023-07-07T17:15:10.4+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.34%

Last modified Jun 17, 2026

CVE-2023-3543 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. A vulnerability was found in GZ Scripts Availability Booking Calendar PHP 1.8. It has been classified as problematic. EPSS estimates a 0.34% chance of exploitation in the next 30 days.

Description

A vulnerability was found in GZ Scripts Availability Booking Calendar PHP 1.8. It has been classified as problematic. This affects an unknown part of the file load.php of the component HTTP POST Request Handler. The manipulation of the argument cid/first_name/second_name/address_1/country leads to cross site scripting. It is possible to initiate the attack remotely. The associated identifier of this vulnerability is VDB-233295. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.34%

25.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Gzscripts	Availability Booking Calendar Php	1.8

References

https://vuldb.com/?ctiid.233295Permissions Required, Third Party Advisory, VDB Entry
https://vuldb.com/?id.233295Permissions Required, Third Party Advisory, VDB Entry
https://vuldb.com/?ctiid.233295Permissions Required, Third Party Advisory, VDB Entry
https://vuldb.com/?id.233295Permissions Required, Third Party Advisory, VDB Entry

Timeline

Published: Jul 7, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-3543?

How severe is CVE-2023-3543?

CVE-2023-3543 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.34% probability of exploitation in the next 30 days.

How do I fix CVE-2023-3543?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-3543?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST