CVE-2025-55270 is an improper input validation flaw in HCL Aftermarket DPC, scored CVSS 3.5 (low). The record says injected content could enable attacks such as XSS, SQL injection and command injection. Confirm the fixed build in HCL's article and update.
What's affected
The NVD record names HCL Aftermarket DPC and lists no version ranges. It is one of four records from the same HCL article, alongside CVE-2025-55261, CVE-2025-55267 and CVE-2025-55269.
The HCL support portal did not return article text when I fetched it, so this guide relies on the NVD record. Read the article itself for the fixed version.
How to check if you're exposed
HCL publishes the affected and fixed builds for Aftermarket DPC in its knowledge base article, and that article is the authority. I could not read its text when preparing this guide, so I will not state a fixed version here.
- Find the build you run. The admin or about page of the product usually shows it, and so does your deployment record.
- Open the HCL article listed under Sources and compare your build with its list of affected and fixed builds.
- If the article lists a fix and you are behind it, you are exposed to the issue described here. If your build is not named, ask HCL support to confirm in writing.
If you run a web application firewall in front of the product, check that it is in blocking mode for injection patterns. That does not replace the update, but it narrows the exposure.
What to do now
- Locate each Aftermarket DPC deployment.
- Read the HCL article and plan the update to the corrected build.
- Patch the same system for the other three CVEs in the article in one change.
- Check your web application firewall or gateway rules for injection patterns on this application.
- Review error and access logs for unusual input patterns and keep anything odd for review.
Why it matters
The class is CWE-20, improper input validation. The record's wording is broad because the flaw is a general lack of checking, and the practical result depends on where the unchecked input ends up, a page, a database query or a system command.
The low score reflects the vector and the conditions in the HCL advisory. The sensible response is to patch with the rest of the batch and to validate input on the server for any custom extensions you run.
Quick check
Why list XSS, SQL injection and command injection together?
They are all injection outcomes. The common cause is input reaching an interpreter without being checked or encoded for that context.
Sources
Last reviewed: 19 October 2026.
