How severe is CVE-2020-9371?

CVE-2020-9371 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-2020-9371 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-9371?

CVE-2020-9371 affects Codepeople Appointment Booking Calendar. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-9371?

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

When was CVE-2020-9371 published?

CVE-2020-9371 was published on 2020-03-04 and last updated on 2026-06-17.

CVE-2020-9371

CVE-2020-9371 is a medium-severity vulnerability in Codepeople Appointment Booking Calendar 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)
CVSS v2: 3.5
EPSS exploit prediction: 4% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Codepeople Appointment Booking Calendar
Published: 2020-03-04
Last modified: 2026-06-17

Description

Stored XSS exists in the Appointment Booking Calendar plugin before 1.3.35 for WordPress. In the cpabc_appointments.php file, the Calendar Name input could allow attackers to inject arbitrary JavaScript or HTML.

Frequently asked questions

What is CVE-2020-9371?: Stored XSS exists in the Appointment Booking Calendar plugin before 1.3.35 for WordPress. In the cpabc_appointments.php file, the Calendar Name input could allow attackers to inject arbitrary JavaScript or HTML.
How severe is CVE-2020-9371?: CVE-2020-9371 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-2020-9371 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-9371?: CVE-2020-9371 affects Codepeople Appointment Booking Calendar. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-9371?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-9371 published?: CVE-2020-9371 was published on 2020-03-04 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:codepeople:appointment_booking_calendar:*:*:*:*:*:wordpress:*:*

More vulnerabilities in Codepeople Appointment Booking Calendar

CVE-2016-10916 — Critical (CVSS 9.8): The appointment-booking-calendar plugin before 1.1.24 for WordPress has SQL injection, a different vulnerability than…
CVE-2024-0856 — High (CVSS 8.8): The Appointment Booking Calendar WordPress plugin before 1.3.83 does not have CSRF checks in some places, which could…
CVE-2025-46241 — High (CVSS 8.2): Cross-Site Request Forgery (CSRF) vulnerability in codepeople Appointment Booking Calendar appointment-booking-calendar…
CVE-2020-9372 — High (CVSS 7.8): The Appointment Booking Calendar plugin before 1.3.35 for WordPress allows user input (in fields such as Description or…
CVE-2024-12274 — High (CVSS 7.5): The Appointment Booking Calendar Plugin and Scheduling Plugin WordPress plugin before 1.1.23 export settings…
CVE-2015-7319 — High (CVSS 7.5): SQL injection vulnerability in cpabc_appointments_admin_int_calendar_list.inc.php in the Appointment Booking Calendar…

All CVEs affecting Codepeople Appointment Booking Calendar →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →