How severe is CVE-2021-46428?

CVE-2021-46428 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-2021-46428 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-46428?

CVE-2021-46428 affects Simple Chatbot Application Project Simple Chatbot Application. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-46428?

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-2021-46428 published?

CVE-2021-46428 was published on 2022-01-27 and last updated on 2026-06-17.

CVE-2021-46428

CVE-2021-46428 is a critical-severity vulnerability in Simple Chatbot Application Project Simple Chatbot Application 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-434.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Simple Chatbot Application Project Simple Chatbot Application
Published: 2022-01-27
Last modified: 2026-06-17

Description

A Remote Code Execution (RCE) vulnerability exists in Sourcecodester Simple Chatbot Application 1.0 ( and previous versions via the bot_avatar parameter in SystemSettings.php.

Frequently asked questions

What is CVE-2021-46428?: A Remote Code Execution (RCE) vulnerability exists in Sourcecodester Simple Chatbot Application 1.0 ( and previous versions via the bot_avatar parameter in SystemSettings.php.
How severe is CVE-2021-46428?: CVE-2021-46428 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-2021-46428 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-46428?: CVE-2021-46428 affects Simple Chatbot Application Project Simple Chatbot Application. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-46428?: 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-2021-46428 published?: CVE-2021-46428 was published on 2022-01-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:simple_chatbot_application_project:simple_chatbot_application:1.0:*:*:*:*:*:*:*

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