How severe is CVE-2023-40754?

CVE-2023-40754 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-40754 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-40754?

CVE-2023-40754 affects Phpjabbers Car Rental Script. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-40754?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-40754 published?

CVE-2023-40754 was published on 2023-08-28 and last updated on 2026-06-17.

CVE-2023-40754

CVE-2023-40754 is a high-severity vulnerability in Phpjabbers Car Rental Script with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-732.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: Phpjabbers Car Rental Script
Published: 2023-08-28
Last modified: 2026-06-17

Description

In PHPJabbers Car Rental Script 3.0, lack of verification when changing an email address and/or password (on the Profile Page) allows remote attackers to take over accounts.

Frequently asked questions

What is CVE-2023-40754?: In PHPJabbers Car Rental Script 3.0, lack of verification when changing an email address and/or password (on the Profile Page) allows remote attackers to take over accounts.
How severe is CVE-2023-40754?: CVE-2023-40754 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-40754 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-40754?: CVE-2023-40754 affects Phpjabbers Car Rental Script. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-40754?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-40754 published?: CVE-2023-40754 was published on 2023-08-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:phpjabbers:car_rental_script:3.0:*:*:*:*:*:*:*

More vulnerabilities in Phpjabbers Car Rental Script

CVE-2023-40764 — Critical (CVSS 9.8): User enumeration is found in PHP Jabbers Car Rental Script v3.0. This issue occurs during password recovery, where a…
CVE-2023-48835 — High (CVSS 8.8): Car Rental Script v3.0 is vulnerable to CSV Injection via a Language > Labels > Export action.
CVE-2023-48834 — High (CVSS 7.5): A lack of rate limiting in pjActionAjaxSend in Car Rental v3.0 allows attackers to cause resource exhaustion.
CVE-2023-48837 — Medium (CVSS 5.4): Car Rental Script 3.0 is vulnerable to Multiple HTML Injection issues via SMS API Key or Default Country Code.
CVE-2023-48836 — Medium (CVSS 5.4): Car Rental Script 3.0 is vulnerable to Multiple Stored Cross-Site Scripting (XSS) issues via the name,…

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