CVE-2025-11963: Reflected XSS in Saysis's StarCities
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Saysis Computer Systems Trade Ltd. Co. StarCities allows Reflected XSS.
This issue affects StarCities: before 1.1.61.
Security readout for executives and security teams
Plain-English summary
CVE-2025-11963 is a reflected cross-site scripting issue in Saysis StarCities before version 1.1.61. An attacker with low-level access could trick a user into interacting with malicious content, potentially exposing limited data or altering page behavior. Public sources do not indicate active exploitation.
Executive priority
Treat as a medium-priority web application issue. It is unlikely to cause system takeover by itself, but it can support phishing, session abuse, or data exposure against users. Remediate during the next normal security update cycle, faster for internet-facing or sensitive deployments.
Technical view
The vulnerability is CWE-79 improper input neutralization during web page generation. CVSS 3.1 is 5.4: network exploitable, low complexity, low privileges required, user interaction required, scope changed, low confidentiality and integrity impact, no availability impact. Affected versions are StarCities before 1.1.61.
Likely exposure
Exposure is most relevant where StarCities is reachable by users and untrusted or low-privileged accounts can create or influence reflected input. Systems below 1.1.61 should be treated as potentially affected.
Exploitation context
Sources describe reflected XSS only. Successful exploitation requires user interaction and some attacker privileges. CISA KEV is not cited, and the provided bundle marks KEV false, so active exploitation is not established from available evidence.
Researcher notes
The public record is sparse. The strongest details are the CVSS vector, CWE-79 classification, and affected range before 1.1.61. The USOM link is marked broken in the bundle, while another Turkish government advisory is listed. No public exploit status is provided.
Mitigation direction
Inventory StarCities deployments and identify versions in use.
Prioritize upgrade of StarCities versions before 1.1.61.
Follow Saysis or Turkish government advisory guidance for exact remediation.
Limit untrusted access to affected StarCities functions where possible.
Monitor web logs for suspicious reflected input patterns.
Validation and detection
Confirm whether any StarCities instance runs below version 1.1.61.
Review vendor or government advisory details for affected components.
Verify remediation by checking installed version after update.
Test only with authorized, non-destructive XSS validation methods.
Confirm no compensating controls block required application functionality.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
cwe · medium confidence lookup
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-79 · source CWE mapping
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.