Language reference
A platform-decline story rather than a workforce-shortage one. Worth evaluating on its own terms.
ColdFusion 1.0 shipped on July 2, 1995, written by J.J. Allaire, with a narrow original goal: make it easy to connect a plain HTML page to a database without writing a lot of custom code to do it. The language it introduced, CFML, used tag syntax deliberately close to HTML itself, so web developers who already knew HTML could pick up database-backed pages without learning an unfamiliar programming language first. Macromedia acquired Allaire in 2001, and Adobe acquired Macromedia in December 2005, which is where ColdFusion has remained since.
CFML's defining choice was syntactic familiarity: tags that read like HTML, plus a script syntax that later leaned toward JavaScript-like conventions, aimed squarely at making database-driven web development approachable rather than powerful in the abstract. That same design choice, prioritizing how fast a working page could be built over how the language would be perceived by programmers coming from other backgrounds, is both why it won early adoption and why it never shed a reputation for being a step removed from mainstream programming language design.
1995 · ColdFusion 1.0
Released July 2 by Allaire, connecting HTML pages to a database with minimal code.
1998 · ColdFusion 4.0
Renamed from Cold Fusion to ColdFusion; added CFScript, locking, and exception handling.
2001 · Macromedia acquisition
Macromedia acquires Allaire Corporation.
2002 · ColdFusion MX 6.0
Complete rewrite onto Java, built to integrate closely with Macromedia Flash.
2005 · Adobe acquisition
Adobe acquires Macromedia in December; ColdFusion becomes an Adobe product.
2009 · ColdFusion 9
Adds object-relational mapping through Hibernate.
2012 · ColdFusion 10
Adds HTML5 WebSockets and RESTful web services.
2025 · ColdFusion 2025
Released February 25 with cloud integrations and continued modern framework support.
0.05% market share, #41 ranked
Adobe ColdFusion's share of the application-development tooling market, with roughly 1,688 companies currently using it.
6sense: Adobe ColdFusion Market Share70% still building new apps
Share of Adobe ColdFusion customers reported to still be building new applications on the platform, not just maintaining existing ones.
Michael Born, dev.toColdFusion history and figures compiled from public sources, cited above. Corrections welcome.
A cftry/cfcatch block with no type attribute specified only catches exceptions of type Application, not every exception the try block could raise. Database, Expression, and other typed exceptions pass straight through an untyped cfcatch instead of being caught by it.
If a cftry block does not seem to be catching an error you know is happening, check whether the cfcatch tag specifies a type at all. Use type="any" deliberately when the intent really is to catch everything, rather than relying on the default.
An expression could not be evaluated, most often from referencing an array index or struct key that does not exist. The underlying Java exception is typically coldfusion.runtime.UndefinedElementException, and the error message names the specific element ColdFusion could not find.
Read the stack trace for the actual function and line number involved rather than only the top-level message, since the generic wording rarely names the real cause on its own. Guard the access with ArrayLen() or StructKeyExists() before referencing an element that may not be present.
The template file named in a cfinclude, cfmodule, or custom tag call could not be found at the path given.
Check the path is correct relative to where ColdFusion resolves includes from (which is not always the calling template's own directory), and confirm the file was actually deployed to that path in this environment.
A cfquery or other database operation failed, wrapping the underlying JDBC driver error, commonly a SQL syntax problem, a connection failure, or a constraint violation.
Read the full error text, which usually includes the underlying JDBC driver's own message and often the actual SQL that was executed; that detail, not the generic Database exception type, names the real problem.
Yes, though its market share is small (around 0.05%). Adobe still ships real releases (ColdFusion 2025), and roughly 70% of existing ColdFusion customers report still building new features on it, not just maintaining old code.
Only if patched aggressively. ColdFusion has been the target of serious, confirmed breaches, including a 2023 federal government breach (CVE-2023-26360) and a critical CVE patched in mid-2026 that was exploited within days.
Nothing directly; shops that leave usually move to a general-purpose web stack (Node.js, Java, .NET). Shops that stay often migrate to Lucee, an open-source CFML engine, to cut licensing cost while keeping the existing codebase.
Yes. Adobe historically shipped ColdFusion security bulletins roughly monthly, but as of July 14, 2026 it moved to a twice-monthly schedule (the 2nd and 4th Tuesday of each month), citing AI-accelerated vulnerability discovery compressing the time between a flaw's disclosure and its exploitation.
Lucee is a free, open-source CFML engine that runs the same CFML language ColdFusion applications are written in, without Adobe's licensing fee. It descends from Railo, emerging as Railo's successor after the Railo Corporation dissolved in July 2016, and is governed today by the nonprofit Lucee Association Switzerland, which ships its own patches on its own release cycle.
Fast, and the gap is shrinking. Reporting on one 2026 maximum-severity ColdFusion flaw described active exploitation attempts beginning within roughly two hours of a public technical write-up, fast enough that routine monthly patch cycles no longer provide meaningful protection for critical-rated bulletins.
They stay dangerous for a long time in practice. CVE-2024-20767 was patched by Adobe in March 2024 but was still being actively exploited by attackers as of December 2024, nine months later, because plenty of production installs simply never applied the fix.
No. It has been a specific, named target in real breach chains rather than a theoretical risk, including the chain CISA documented in advisory AA23-339A, where CVE-2023-29298 was used to reach restricted ColdFusion Administrator endpoints and chained with CVE-2023-26360 for code execution. Restricting admin access to an internal network or VPN removes that entire path.
No, if anything the opposite. Adobe's June 30, 2026 bulletin (APSB26-68) patched 11 vulnerabilities in a single emergency release, seven of them at the maximum CVSS severity of 10.0, which is not the pattern of a platform researchers and attackers have stopped paying attention to.
Real questions from public forum threads, with credit to who asked and who answered. Our answer restates the fix and links to the matching reference page where one exists.
I'm getting "Element is undefined in a CFML structure referenced as part of an expression" with no field name given. How do I even find what's wrong?
Asked by SRJyothirmai on Adobe Community forum, ongoing thread
“Look at the stack trace instead of the top-level message. Words like array and UDF (user-defined function) in the trace point at where the actual problem is, since the generic error text alone rarely names it.”
Dan_Bracuk
This message is famously unhelpful on its own because it does not always name the missing element. The underlying Java exception is coldfusion.runtime.UndefinedElementException, and the fix is almost always the same: read the full stack trace for the actual function and line number, then guard the access with ArrayLen() or StructKeyExists() before referencing an element that might not be there.
Full reference page →Everyone treats ColdFusion as a punchline. Is there an actual argument for still using it in 2026?
Asked by raised repeatedly in developer community discussion on dev.to, Michael Born, ColdFusion engineer
“Popularity metrics like Google Trends and Stack Overflow rankings do not measure whether a language is still useful. He cites that roughly 70% of Adobe ColdFusion customers are still building new applications on it, not just maintaining old ones, and that CFML lets you build a form, process it, and send an email in about an hour without leaving the language.”
Michael Born
The honest version of this answer is not that ColdFusion is secretly popular, it clearly is not, but that popularity and continued investment are different questions. A platform at roughly 0.05% market share that still sees 70% of its own customers building new features on it is a genuine, if small, ongoing concern, not a dead one. Whether that argues for using it on a new project depends entirely on whether your organization already has the CFML expertise on hand.
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