How severe is CVE-2024-7877?

CVE-2024-7877 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2024-7877 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-7877?

CVE-2024-7877 affects Nsqua Simply Schedule Appointments. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-7877?

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

Does CVE-2024-7877 have an EU (EUVD) identifier?

Yes. CVE-2024-7877 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-48725.

When was CVE-2024-7877 published?

CVE-2024-7877 was published on 2024-11-05 and last updated on 2026-06-17.

CVE-2024-7877

CVE-2024-7877 is a medium-severity vulnerability in Nsqua Simply Schedule Appointments with a CVSS 3.x base score of 4.8. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 4.8)
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-48725
Weakness: CWE-79
Affected product: Nsqua Simply Schedule Appointments
Published: 2024-11-05
Last modified: 2026-06-17

Description

The Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin WordPress plugin before 1.6.7.55 does not sanitise and escape some of its Notification settings, which could allow high privilege users such as admin to perform Cross-Site Scripting attacks even when unfiltered_html is disallowed

Frequently asked questions

What is CVE-2024-7877?: The Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin WordPress plugin before 1.6.7.55 does not sanitise and escape some of its Notification settings, which could allow high privilege users such as admin to perform Cross-Site Scripting attacks even when unfiltered_html is disallowed
How severe is CVE-2024-7877?: CVE-2024-7877 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2024-7877 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-7877?: CVE-2024-7877 affects Nsqua Simply Schedule Appointments. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-7877?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-7877 have an EU (EUVD) identifier?: Yes. CVE-2024-7877 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-48725.
When was CVE-2024-7877 published?: CVE-2024-7877 was published on 2024-11-05 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/fbec3738-2135-458d-be25-1ffb00e6deb6/

Affected products (1)

cpe:2.3:a:nsqua:simply_schedule_appointments:*:*:*:*:*:wordpress:*:*

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