CVE-2025-53328Network attack vector

Unauthenticated local file disclosure via file inclusion

Published Aug 28, 2025 · Updated Apr 28, 2026

Local file inclusion in Opinion Stage Quiz Maker, Poll Maker & Survey Maker 19.11.0 and earlier allows remote attackers to read local files. The public CNA record and Patchstack advisory do not identify the affected request parameter, PHP include or require call, or path-validation error. Exploitation requires no attacker account but does require a privileged user to perform an action, and exposed files can include website credentials.

CVSS severity7.5
High
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Local file inclusion in Opinion Stage Quiz Maker, Poll Maker & Survey Maker 19.11.0 and earlier allows remote attackers to read local files. The public CNA record and Patchstack advisory do not identify the affected request parameter, PHP include or require call, or path-validation error. Exploitation requires no attacker account but does require a privileged user to perform an action, and exposed files can include website credentials.

The record

CVE
CVE-2025-53328
Published
Aug 28, 2025
Updated
Apr 28, 2026
Vendor
Opinion Stage
Product
Quiz Maker, Poll Maker & Survey Maker by Opinion Stage
Classifications
CWE-98
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 28, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=19.11.0 changes=[{"at":"19.11.1","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Opinion Stage · Quiz Maker, Poll Maker & Survey Maker by Opinion Stageversion=0 <=19.11.0 changes=[{"at":"19.11.1","status":"unaffected"}]

Published CVSS scores

7.5PatchstackCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-98Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo