FlyCms: Default super administrator credentials
Summary
FlyCms through commit edfdf724 ships with a default super administrator account (flycms) that uses the publicly known password admin123. An unauthenticated remote attacker who solves the image captcha can log in via POST /api/auth/login and gain full control over site content, users and configuration. The flaw is in the default configuration and does not require any special conditions beyond an unchanged account.
Affected
- FlyCms through commit edfdf724c3b944310f60c29aa755d03a00a75837
- Versions are commit-based; no tagged release numbers were identified.
Fixed in
Unknown.
Workaround
- Change the password of the default account flycms on every installation, including test and staging systems.
- Disable the default account if it is not required.
- Restrict access to the admin login and API paths to trusted networks at the reverse proxy or firewall.
Exploitation
- Exploited in the wild: nothing known.
- Public proof of concept: unclear. The researcher in GitHub issue #19 reported verifying the default login on an unmodified deployment.
- Authentication: none required beyond solving the image captcha.
Our recommendation
- Inventory all FlyCms installations, including test systems and forgotten instances.
- Change or disable the default account flycms immediately and review logs for logins with that account.
- Limit administrator access to trusted networks until a fixed version is confirmed.
- Monitor GitHub issue #19 and the vendor repository for a fix, and re-check the NVD status.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- VulnCheck advisory www.vulncheck.com
- FlyCms GitHub issue #19 github.com
- FlyCms README at edfdf724 github.com
- FlyCms SQL snapshot at edfdf724 github.com
- OpenCVE CVE-2026-112296 app.opencve.io
- Strix CVE-2026-112296 www.strix.ai
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 31 Oct 2026, 01:16.
Original description (NVD)
FlyCms through commit edfdf724 contains a default credentials vulnerability that allows unauthenticated remote attackers to gain super administrator access via the flycms account with password admin123. Attackers can log in through POST /api/auth/login, solving only the image captcha, to obtain full control of site content, users and configuration.
NVD references (4)
- https://github.com/sunkaifei/FlyCms/blob/edfdf724c3b944310f60c29aa755d03a00a75837/README.md
- https://github.com/sunkaifei/FlyCms/blob/edfdf724c3b944310f60c29aa755d03a00a75837/sql/flycms_20260928_093335.…
- https://github.com/sunkaifei/FlyCms/issues/19
- https://www.vulncheck.com/advisories/flycms-through-commit-edfdf724-default-super-administrator-credentials
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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