CVE-2025-11963Network attack vector

Authenticated script execution via reflected request input

Published Nov 19, 2025 · Updated Nov 19, 2025

Reflected XSS in Saysis StarCities before 1.1.61 allows remote authenticated users to execute script in another user's browser. The published advisory does not disclose the affected endpoint, parameter, or server-side code path that reflects the input. Exploitation requires low-privileged access and a victim to open the crafted request; the script runs in the victim's browser context and can read or alter application data.

CVSS severity5.4
Medium
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

Reflected XSS in Saysis StarCities before 1.1.61 allows remote authenticated users to execute script in another user's browser. The published advisory does not disclose the affected endpoint, parameter, or server-side code path that reflects the input. Exploitation requires low-privileged access and a victim to open the crafted request; the script runs in the victim's browser context and can read or alter application data.

The record

CVE
CVE-2025-11963
Published
Nov 19, 2025
Updated
Nov 19, 2025
Vendor
Saysis
Product
StarCities
Classifications
CWE-79, CAPEC-591, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 19, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 19, 2025Record 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 <1.1.61

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Saysis · StarCitiesversion=0 <1.1.61

Published CVSS scores

5.4Computer Emergency Response Team of the Republic of TurkeyCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
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