Critical 9.8Published Oct 16, 2026

CVE-2026-111673IceCMS through 4.1.5 Missing Authentication via /User Administrative Endpoints

Updated under an hour ago (Oct 28, 2026, 4:30 PM ET)

Does this affect you?

It affects Thecosy IceCMS. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.55%, higher than 46% of scored CVEs.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Thecosy IceCMS

Exploited in the last 30 days

IceCMS through 4.1.5 contains a missing authentication vulnerability that allows unauthenticated attackers to modify, delete, or disable any account because /User/** is excluded from the Shiro jwt filter. Attackers can send PUT requests to /User/updateUser to set a new password and role on any userId, including administrators, enabling full account takeover.

CVSS: 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-306
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.55% (percentile 46)
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Oct 16, 2026
First seen by InfoSec Signals: Oct 16, 2026

Affected products

Affected products

Thecosy IceCMS thecosy:icecms (from the name)	through 4.1.5	CNA record

References

References

https://hackmd.io/@hieuPenguinnn/icecms-backend-user-admin-unauth-account-takeover	third-party-advisory
https://github.com/Thecosy/IceCMS/blob/afd7a9f0d04a714e7c7e735e566c27f54b5d5201/IceCMS-ment/src/main/java/com/ttice/icewkment/controller/backend/UserController.java#L743-L818	technical-description
https://github.com/Thecosy/IceCMS/blob/afd7a9f0d04a714e7c7e735e566c27f54b5d5201/IceCMS-ment/src/main/java/com/ttice/icewkment/configuration/ShiroConfig.java#L64-L88	technical-description
https://github.com/Thecosy/IceCMS	product
https://www.vulncheck.com/advisories/icecms-through-4.1.5-missing-authentication-via-user-administrative-endpoints	third-party-advisory

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.