CVE-2023-33562

CVE-2023-33562 is a critical-severity vulnerability in Phpjabbers Time Slots Booking Calendar 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.

Key facts

Description

User enumeration is found in in PHP Jabbers Time Slots Booking Calendar v3.3. This issue occurs during password recovery, where a difference in messages could allow an attacker to determine if the user is valid or not, enabling a brute force attack with valid users.

Frequently asked questions

What is CVE-2023-33562?
User enumeration is found in in PHP Jabbers Time Slots Booking Calendar v3.3. This issue occurs during password recovery, where a difference in messages could allow an attacker to determine if the user is valid or not, enabling a brute force attack with valid users.
How severe is CVE-2023-33562?
CVE-2023-33562 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-2023-33562 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-33562?
CVE-2023-33562 affects Phpjabbers Time Slots Booking Calendar. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-33562?
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-2023-33562 published?
CVE-2023-33562 was published on 2023-08-01 and last updated on 2026-06-17.

References

Affected products (1)

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