How severe is CVE-2023-34477?

CVE-2023-34477 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-2023-34477 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-34477?

CVE-2023-34477 affects Braincert Virtual Classroom. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-34477?

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.

When was CVE-2023-34477 published?

CVE-2023-34477 was published on 2023-08-07 and last updated on 2026-06-17.

CVE-2023-34477

CVE-2023-34477 is a critical-severity vulnerability in Braincert Virtual Classroom 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% (39th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Braincert Virtual Classroom
Published: 2023-08-07
Last modified: 2026-06-17

Description

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability allows SQL Injection.

Frequently asked questions

What is CVE-2023-34477?: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability allows SQL Injection.
How severe is CVE-2023-34477?: CVE-2023-34477 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-2023-34477 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-34477?: CVE-2023-34477 affects Braincert Virtual Classroom. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-34477?: 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.
When was CVE-2023-34477 published?: CVE-2023-34477 was published on 2023-08-07 and last updated on 2026-06-17.

References

https://extensions.joomla.org/extension/online-virtual-classroom/

Affected products (1)

cpe:2.3:a:braincert:virtual_classroom:*:*:*:*:*:joomla\!:*:*

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