How severe is CVE-2025-26198?

CVE-2025-26198 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-26198 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-26198?

CVE-2025-26198 affects Vishalmathur Cloudclassroom-php Project. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-26198?

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

Does CVE-2025-26198 have an EU (EUVD) identifier?

Yes. CVE-2025-26198 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-18659.

When was CVE-2025-26198 published?

CVE-2025-26198 was published on 2025-06-18 and last updated on 2026-06-17.

CVE-2025-26198

CVE-2025-26198 is a critical-severity vulnerability in Vishalmathur Cloudclassroom-php Project with a CVSS 3.x base score of 9.8. 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-89.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-18659
Weakness: CWE-89
Affected product: Vishalmathur Cloudclassroom-php Project
Published: 2025-06-18
Last modified: 2026-06-17

Description

CloudClassroom-PHP-Project v1.0 contains a critical SQL Injection vulnerability in the loginlinkadmin.php component. The application fails to sanitize user-supplied input in the admin login form before directly including it in SQL queries. This allows unauthenticated attackers to inject arbitrary SQL payloads and bypass authentication, gaining unauthorized administrative access. The vulnerability is triggered when an attacker supplies specially crafted input in the username field, such as ' OR '1'='1, leading to complete compromise of the login mechanism and potential exposure of sensitive backend data.

Frequently asked questions

What is CVE-2025-26198?: CloudClassroom-PHP-Project v1.0 contains a critical SQL Injection vulnerability in the loginlinkadmin.php component. The application fails to sanitize user-supplied input in the admin login form before directly including it in SQL queries. This allows unauthenticated attackers to inject arbitrary SQL payloads and bypass authentication, gaining unauthorized administrative access. The vulnerability is triggered when an attacker supplies specially crafted input in the username field, such as ' OR '1'='1, leading to complete compromise of the login mechanism and potential exposure of sensitive backend data.
How severe is CVE-2025-26198?: CVE-2025-26198 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-26198 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-26198?: CVE-2025-26198 affects Vishalmathur Cloudclassroom-php Project. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-26198?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-26198 have an EU (EUVD) identifier?: Yes. CVE-2025-26198 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-18659.
When was CVE-2025-26198 published?: CVE-2025-26198 was published on 2025-06-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:vishalmathur:cloudclassroom-php_project:1.0:*:*:*:*:*:*:*

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