CVE-2025-23740

CVE-2025-23740 is a high-severity vulnerability with a CVSS 3.x base score of 7.1. 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

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Zbynek Nedoma Easy School Registration easy-school-registration allows Reflected XSS.This issue affects Easy School Registration: from n/a through <= 3.9.8.

Frequently asked questions

What is CVE-2025-23740?
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Zbynek Nedoma Easy School Registration easy-school-registration allows Reflected XSS.This issue affects Easy School Registration: from n/a through <= 3.9.8.
How severe is CVE-2025-23740?
CVE-2025-23740 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2025-23740 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.
How do I fix CVE-2025-23740?
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-2025-23740 have an EU (EUVD) identifier?
Yes. CVE-2025-23740 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-5673.
When was CVE-2025-23740 published?
CVE-2025-23740 was published on 2025-03-03 and last updated on 2026-06-17.

References

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

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