CVE-2026-78191
WebDyne versions from 2.031 before 3.022 for Perl execute files with .psp anywhere in the name as Perl pages
- State
- Published
- Severity
- Not scored
- Published
- Oct 31, 2026
- Updated
- Oct 31, 2026
- Reserved
- Aug 23, 2026
Description
WebDyne versions from 2.031 before 3.022 for Perl execute files with .psp anywhere in the name as Perl pages.
WebDyne decides whether to run a requested file as a page by matching its name against WEBDYNE_PSP_EXT_RE, which has no end anchor.
An application that accepts uploads by checking only the final extension lets a remote attacker upload a file such as report.psp.pdf and run its embedded Perl by requesting it.
Scores
The record has no CVSS score.
Weaknesses
- CWE-777 Regular Expression without Anchors
Affected Products
| Product | Versions |
|---|---|
WebDyne |
|
References
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.