CVE-2024-55963

Medium

Published: 26 March 2025

Published

26 March 2025

Modified

01 April 2025

KEV Added

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Patch

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CVSS Score v3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Score 0.3723 97.3th percentile

Risk Priority 35 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-55963 is a medium-severity Improper Access Control (CWE-284) vulnerability in Appsmith Appsmith. Its CVSS base score is 6.5 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Application or System Exploitation (T1499.004); ranked in the top 2.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified are NIST 800-53 AC-3 (Access Enforcement) and AC-6 (Least Privilege).

Deeper analysis

Appsmith versions prior to 1.51 are affected by an improper access control vulnerability tracked as CVE-2024-55963 and CWE-284. The restart API lacks required super-user permission checks on incoming requests, allowing any authenticated user to invoke a server restart that remains confined to the Appsmith container itself.

An attacker with low-privileged network access can repeatedly trigger the restart endpoint, producing a denial-of-service condition that degrades availability while leaving confidentiality and integrity untouched; the CVSS 6.5 score reflects this limited but persistent impact.

The associated GitHub security advisory GHSA-6mc8-hw5c-7qqr outlines the root cause and the corrective measures implemented in the 1.51 release.

The EPSS score currently stands at 0.3723 with a recorded peak of 0.3907.

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2024-54312

Vulnerability details

An issue was discovered in Appsmith before 1.51. A user on Appsmith that doesn't have admin permissions can trigger the restart API on Appsmith, causing a server restart. This is still within the Appsmith container, and the impact is limited…

to Appsmith's own server only, but there is a denial of service because it can be continually restarted. This is due to incorrect access control checks, which should check for super user permissions on the incoming request.

CWE(s): CWE-284

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1499.004 Application or System Exploitation Impact

Adversaries may exploit software vulnerabilities that can cause an application or system to crash and deny availability to users.

attack.mitre.org →

Why these techniques?

The vulnerability allows low-privileged authenticated users to invoke the restart API, directly enabling denial of service by restarting the application server.

Confidence: MEDIUM · MITRE ATT&CK Enterprise v19.0