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Vulnerabilities

Vulnerability · CVE-2025-23979

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in duwasai Flashy allows Reflected XSS.This issue affects Flashy: from n/a throug

Published May 19, 2025 · catalog updated Apr 28, 2026 · Flashy

Check this week

CVE-2025-23979 is not in CISA KEV. FIRST estimates a 23.00% chance of exploitation in the next 30 days. Check whether you run Flashy.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
23.00%
Remediation
Advisory link
Affected products
vendor duwasai Flashy n/a ≤1.2.1

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in duwasai Flashy allows Reflected XSS.This issue affects Flashy: from n/a through 1.2.1.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor duwasai Flashy n/a ≤1.2.1n/a ≤1.2.1

How to fix CVE-2025-23979

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2025-23979 is not in CISA KEV. FIRST estimates a 23.00% chance of exploitation in the next 30 days. Check whether you run Flashy.

Which versions are affected?

Compare what you have installed with duwasai Flashy n/a ≤1.2.1 n/a ≤1.2.1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 23.00%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 19, 2025 · EUVD

    Detected

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in duwasai Flashy allows Reflected XSS.This issue affects Flashy: from n/a through 1.2.1.

  2. Apr 28, 2026 · EUVD

    Updated

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in duwasai Flashy allows Reflected XSS.This issue affects Flashy: from n/a through 1.2.1.

Sources

  • CVE.orgVulnerability recordCVE-2025-23979

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-15727

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in duwasai Flashy allows Reflected XSS.This issue affects Flashy: from n/a through 1.2.1.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.