How severe is CVE-2026-23622?

CVE-2026-23622 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-23622 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-23622?

CVE-2026-23622 affects Easyappointments Easy!appointments. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-23622?

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

Does CVE-2026-23622 have an EU (EUVD) identifier?

Yes. CVE-2026-23622 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-2736.

When was CVE-2026-23622 published?

CVE-2026-23622 was published on 2026-01-15 and last updated on 2026-06-17.

CVE-2026-23622

CVE-2026-23622 is a high-severity vulnerability in Easyappointments Easy!appointments with a CVSS 3.x base score of 8.8. 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-352.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 7.4
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-2736
Weakness: CWE-352
Affected product: Easyappointments Easy!appointments
Published: 2026-01-15
Last modified: 2026-06-17

Description

Easy!Appointments is a self hosted appointment scheduler. In 1.5.2 and earlier, application/core/EA_Security.php::csrf_verify() only enforces CSRF for POST requests and returns early for non-POST methods. Several application endpoints perform state-changing operations while accepting parameters from GET (or $_REQUEST), so an attacker can perform CSRF by forcing a victim's browser to issue a crafted GET request. Impact: creation of admin accounts, modification of admin email/password, and full admin account takeover.

Frequently asked questions

What is CVE-2026-23622?: Easy!Appointments is a self hosted appointment scheduler. In 1.5.2 and earlier, application/core/EA_Security.php::csrf_verify() only enforces CSRF for POST requests and returns early for non-POST methods. Several application endpoints perform state-changing operations while accepting parameters from GET (or $_REQUEST), so an attacker can perform CSRF by forcing a victim's browser to issue a crafted GET request. Impact: creation of admin accounts, modification of admin email/password, and full admin account takeover.
How severe is CVE-2026-23622?: CVE-2026-23622 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-23622 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-23622?: CVE-2026-23622 affects Easyappointments Easy!appointments. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-23622?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-23622 have an EU (EUVD) identifier?: Yes. CVE-2026-23622 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-2736.
When was CVE-2026-23622 published?: CVE-2026-23622 was published on 2026-01-15 and last updated on 2026-06-17.

References

https://github.com/alextselegidis/easyappointments/security/advisories/GHSA-54v4-4685-vwrj

Affected products (1)

cpe:2.3:a:easyappointments:easy\!appointments:*:*:*:*:*:-:*:*

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