How severe is CVE-2021-37333?

CVE-2021-37333 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-37333 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-37333?

CVE-2021-37333 affects Bookingcore Booking Core. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-37333?

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

When was CVE-2021-37333 published?

CVE-2021-37333 was published on 2021-10-04 and last updated on 2026-06-17.

CVE-2021-37333

CVE-2021-37333 is a critical-severity vulnerability in Bookingcore Booking Core with a CVSS 3.x base score of 9.8. 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-613.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (74th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-613
Affected product: Bookingcore Booking Core
Published: 2021-10-04
Last modified: 2026-06-17

Description

Laravel Booking System Booking Core 2.0 is vulnerable to Session Management. A password change at sandbox.bookingcore.org/user/profile/change-password does not invalidate a session that is opened in a different browser.

Frequently asked questions

What is CVE-2021-37333?: Laravel Booking System Booking Core 2.0 is vulnerable to Session Management. A password change at sandbox.bookingcore.org/user/profile/change-password does not invalidate a session that is opened in a different browser.
How severe is CVE-2021-37333?: CVE-2021-37333 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-37333 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-37333?: CVE-2021-37333 affects Bookingcore Booking Core. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-37333?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-37333 published?: CVE-2021-37333 was published on 2021-10-04 and last updated on 2026-06-17.

References

https://www.navidkagalwalla.com/booking-core-vulnerabilities

Affected products (1)

cpe:2.3:a:bookingcore:booking_core:2.0:*:*:*:*:*:*:*

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