Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection') Affecting org.glassfish.jsftemplating:jsftemplating package, versions [,4.2.0)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published21 May 2026
- disclosed20 May 2026
- creditCamilo Galdos
Introduced: 20 May 2026
NewCVE-2026-2587 (opens in a new tab)How to fix?
Upgrade org.glassfish.jsftemplating:jsftemplating to version 4.2.0 or higher.
Overview
Affected versions of this package are vulnerable to Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection') in the server-side template rendering mechanism used by the gadget handler. An attacker can execute arbitrary commands, read/modify data by sending a specially crafted gadget URL with injected expressions such as #{7*7} to an authenticated administrator.