Expression Language Injection via User Input in Multiple WSO2 Products Permits Arbitrary Operations

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

The software accepts user-supplied data without sufficient validation, allowing for the injection of malicious Expression Language (EL) code. This can lead to the execution of arbitrary operations within the affected deployment. Exploitation of this vulnerability requires administrator privileges. The impact is minimal as EL usage is restricted to certain read operations.

Source published

19 Oct 2026 16:59:05 UTC

Source modified

20 Oct 2026 19:31:26 UTC

Observed here

23 Oct 2026 15:48:27 UTC

Source terms

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CVSS 3.1 · 2.7 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N