CVE-2023-48836: Car Rental Script 3.0 is vulnerable to Multiple Stored Cross-Site Scripting (XSS) issues via the name, plugin_

Routine

MEDIUM 5.4DOWNGRADE

CVE-2023-48836 is a medium-severity flaw (CVSS 5.4) affecting car rental script. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Car Rental Script 3.0 is vulnerable to Multiple Stored Cross-Site Scripting (XSS) issues via the name, plugin_sms_api_key, plugin_sms_country_code, calendar_id, title, country name, or customer_name parameter.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-79
Published	2023-12-07
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: phpjabbers

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-12-07 07:15 UTCPublished CVE record published
2026-06-17 06:35 UTCUpdated Record last modified

phpjabbers car rental script DOWNGRADE

Affected: 3.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.0

1. Check installed version

apt-cache policy car-rental-script || rpm -q car-rental-script || car-rental-script --version

2. No fixed release: DOWNGRADE to a release before 3.0 (Debian / Ubuntu)

apt-cache madison car-rental-script sudo apt install car-rental-script=<VERSION_BEFORE_3.0> sudo apt-mark hold car-rental-script

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list car-rental-script sudo dnf downgrade car-rental-script-<VERSION_BEFORE_3.0> sudo dnf versionlock add car-rental-script

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-48836?

car rental script: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-48836 being exploited?

CVE-2023-48836 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-48836 affect?

CVE-2023-48836 affects car rental script. Severity is medium (CVSS 5.4). Car Rental Script 3.0 is vulnerable to Multiple Stored Cross-Site Scripting (XSS) issues via the name, plugin_sms_api_key, plugin_sms_country_code, calendar_id, title, country name, or customer_name parameter.

How urgent is CVE-2023-48836?

Priority 34/100. Public exploit reference

Related CVEs

CVE-2023-48837 MEDIUM 5.4 DOWNGRADE Car Rental Script 3.0 is vulnerable to Multiple HTML Injection issues via SMS API Key or Default Country Code.
CVE-2023-48835 HIGH 8.8 DOWNGRADE Car Rental Script v3.0 is vulnerable to CSV Injection via a Language > Labels > Export action.
CVE-2023-48834 HIGH 7.5 DOWNGRADE A lack of rate limiting in pjActionAjaxSend in Car Rental v3.0 allows attackers to cause resource exhaustion.
CVE-2023-40764 CRITICAL 9.8 DOWNGRADE User enumeration is found in PHP Jabbers Car Rental Script v3.0
CVE-2023-40754 HIGH 8.8 DOWNGRADE In PHPJabbers Car Rental Script 3.0, lack of verification when changing an email address and/or password (on t

References

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