How severe is CVE-2023-51295?

CVE-2023-51295 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-51295 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-51295?

CVE-2023-51295 affects Phpjabbers Event Booking Calendar. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-51295?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2023-51295 have an EU (EUVD) identifier?

Yes. CVE-2023-51295 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-56016.

When was CVE-2023-51295 published?

CVE-2023-51295 was published on 2025-05-08 and last updated on 2026-06-17.

CVE-2023-51295

CVE-2023-51295 is a medium-severity vulnerability in Phpjabbers Event Booking Calendar with a CVSS 3.x base score of 6.5. 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-77.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (31st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-56016
Weakness: CWE-77
Affected product: Phpjabbers Event Booking Calendar
Published: 2025-05-08
Last modified: 2026-06-17

Description

PHPJabbers Event Booking Calendar v4.0 is vulnerable to Multiple HTML Injection in the "name, plugin_sms_api_key, plugin_sms_country_code, title, plugin_sms_api_key, title" parameters.

Frequently asked questions

What is CVE-2023-51295?: PHPJabbers Event Booking Calendar v4.0 is vulnerable to Multiple HTML Injection in the "name, plugin_sms_api_key, plugin_sms_country_code, title, plugin_sms_api_key, title" parameters.
How severe is CVE-2023-51295?: CVE-2023-51295 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-51295 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-51295?: CVE-2023-51295 affects Phpjabbers Event Booking Calendar. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-51295?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-51295 have an EU (EUVD) identifier?: Yes. CVE-2023-51295 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-56016.
When was CVE-2023-51295 published?: CVE-2023-51295 was published on 2025-05-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:phpjabbers:event_booking_calendar:4.0:*:*:*:*:*:*:*

More vulnerabilities in Phpjabbers Event Booking Calendar

CVE-2023-40765 — Critical (CVSS 9.8): User enumeration is found in PHPJabbers Event Booking Calendar v4.0. This issue occurs during password recovery, where…
CVE-2023-51293 — High (CVSS 7.5): A lack of rate limiting in the 'Forgot Password', 'Email Settings' feature of PHPJabbers Event Booking Calendar v4.0…
CVE-2014-10015 — High (CVSS 7.5): SQL injection vulnerability in load-calendar.php in PHPJabbers Event Booking Calendar 2.0 allows remote attackers to…
CVE-2014-10014 — Medium (CVSS 6.8): Multiple cross-site request forgery (CSRF) vulnerabilities in PHPJabbers Event Booking Calendar 2.0 allow remote…
CVE-2023-51296 — Medium (CVSS 6.1): PHPJabbers Event Booking Calendar v4.0 is vulnerable to Cross-Site Scripting (XSS) in the "name, plugin_sms_api_key,…
CVE-2023-51298 — Medium (CVSS 4.7): PHPJabbers Event Booking Calendar v4.0 is vulnerable to CSV Injection vulnerability which allows an attacker to execute…

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