CVE-2025-23803Network attack vector

Reflected XSS via cross-site request forgery

Published Jan 22, 2025 · Updated May 11, 2026

Cross-site request forgery in Rik Schennink Snippy 1.4.1 and earlier allows remote attackers to trigger reflected XSS via crafted requests. Public records do not identify the affected request handler or parameter; they report insufficient input sanitization and output escaping. Exploitation requires a logged-in user to open an attacker-controlled link or otherwise submit the forged request, causing script execution in that user's browser.

CVSS severity7.1
High
EPSS probability0.17%
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

Cross-site request forgery in Rik Schennink Snippy 1.4.1 and earlier allows remote attackers to trigger reflected XSS via crafted requests. Public records do not identify the affected request handler or parameter; they report insufficient input sanitization and output escaping. Exploitation requires a logged-in user to open an attacker-controlled link or otherwise submit the forged request, causing script execution in that user's browser.

The record

CVE
CVE-2025-23803
Published
Jan 22, 2025
Updated
May 11, 2026
Vendor
Rik Schennink
Product
Snippy
Classifications
CWE-352, CAPEC-591, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 22, 2025CVE publishedPublication date reported by the CVE source.
  2. May 11, 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 <=1.4.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Rik Schennink · Snippyversion=0 <=1.4.1

Published CVSS scores

7.1PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

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-352Cross-Site Request Forgery (CSRF)
CAPEC-591Reflected XSS
T1203Exploitation for Client Execution

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