Medium 4.3Published Sep 7, 2026

CVE-2026-86244FastAdmin User Controller User.php login cross site scripting

Updated under an hour ago (2026-10-19 07:10 UTC)

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It affects n/a FastAdmin. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for n/a FastAdmin

Exploited in the last 30 days

A security vulnerability has been detected in FastAdmin up to 1.2.0.20210401_beta. Affected is the function register/login of the file application/index/controller/User.php of the component User Controller. Such manipulation of the argument url leads to cross site scripting. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. Upgrading to version 1.2.1.20210731_beta is able to address this issue. The name of the patch is b3d32e2bf3637488cfe2fc58a27a9d2475b2b51b. It is recommended to upgrade the affected component.

CVSS: 4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C
Weakness (CWE): CWE-79, CWE-94
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Deferred
Record last updated: Sep 8, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

n/a FastAdmin fastadmin:fastadmin	1.2.0.20210401_beta; 1.2.1.20210731_beta not affected	CNA record

References

https://vuldb.com/vuln/399399vdb-entry, technical-description
https://vuldb.com/vuln/399399/ctisignature, permissions-required
https://vuldb.com/cve/CVE-2026-86244third-party-advisory
https://vuldb.com/submit/898809third-party-advisory
https://lhzzz08.github.io/posts/cveapplication4/exploit
https://github.com/fastadminnet/fastadmin/commit/b3d32e2bf3637488cfe2fc58a27a9d2475b2b51bpatch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.