Security readout for executives and security teams
A very old flaw in Allaire JRun 2.3, a Java web application server from 2000, let anyone on the internet request source code for server-side pages by calling a specific built-in component directly. Exposing source code can leak business logic, hardcoded credentials, and database details. The product is long out of support, so the practical risk today is only for organizations still running legacy JRun 2.3 systems. Exposure is limited to environments still running Allaire JRun 2.3, a product Macromedia and later Adobe discontinued years ago. Any remaining instance is likely embedded in legacy internal or appliance systems. Internet-facing exposure would be unusual in 2026 but is a serious finding if discovered during discovery or M&A due diligence. Low priority for most modern estates because Allaire JRun 2.3 predates current infrastructure. Priority becomes high only if inventory confirms a live JRun 2.3 instance, especially one exposed externally or hosting business-critical logic. Treat any confirmed instance as end-of-life technical debt requiring a migration plan. Mitigation focus: Retire or replace Allaire JRun 2.3; the product line is end-of-life with no vendor patches available.; If retirement is not immediate, restrict access to JRun servers to trusted internal networks only.; Block external requests to the SSIFilter servlet path at the reverse proxy or WAF..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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CVE-2000-1052 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
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- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
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Source materials
- CVE List V5 sourceCVE List V5
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CWE details
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