CVE-2026-118995
Received
Received - Intake
Stored XSS in CallBackery Perl Framework
Vulnerability report for CVE-2026-118995, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-10-30
Last updated on: 2026-10-30
Assigner: CPANSec
Description
Description
CallBackery versions before 0.62.0 for Perl accept unintended values in form fields checked by createRxValidator.
createRxValidator() is documented to anchor the supplied pattern at both ends, but builds /^${rx}$/ without grouping the pattern. An alternation such as yes|no then accepts any value starting with yes or ending with no, and $ also accepts a value with one trailing newline.
An authenticated user can submit values the pattern was meant to reject, which an application may then write into generated configuration files.
CVSS Scores
EPSS Scores
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| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| callbackery | callbackery | to 0.62.0 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-625 | The product uses a regular expression that does not sufficiently restrict the set of allowed values. |
