EUVD-2026-60544
GHSA-34w2-p54f-fxmp
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Network-reachable, low-complexity RCE with full impact, but plugin installation is normally an administrative operation so PR:H is assessed; drop to PR:N only if the endpoint is confirmed unauthenticated.
Primary rating from Vendor (mitre).
CVSS VectorVendor: mitre
Lifecycle Timeline
4DescriptionCVE.org
An issue in Halo 2.25.4 allows a remote attacker to execute arbitrary code via the PluginEndpoint.java, installFromUri method, and DefaultPluginApplicationContextFactory components
AnalysisAI
Remote code execution in Halo 2.25.4, an open-source Java-based CMS/blogging platform, arises from its plugin-installation machinery: the installFromUri method in PluginEndpoint.java combined with DefaultPluginApplicationContextFactory loads and executes attacker-supplied plugin code, giving full CWE-94 code injection with total confidentiality, integrity, and availability impact (CVSS 9.8). Publicly available exploit code exists in a referenced GitHub gist, but there is no public exploit identified as being actively used in the wild (not on CISA KEV). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation targets the plugin-installation path specifically: the attacker must be able to reach and invoke PluginEndpoint.java's installFromUri operation and supply a URI resolving to a malicious plugin that DefaultPluginApplicationContextFactory will load in Halo 2.25.4. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The raw signals are severe: CVSS 3.1 base 9.8 with AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H implies trivial, unauthenticated, network-reachable exploitation with total impact, and publicly available exploit code (gist) lowers the barrier further. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch or fixed version was identified in the provided data, and the references point to the project README, VulDB, NVD, and a POC gist rather than to a security advisory or tagged release - so no exact fix version can be cited. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Publicly available exploit code exists for this vulnerability. …
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Same weakness CWE-94 – Code Injection
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External POC / Exploit Code
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