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CVE-2026-81895

7.2, high

Concrete CMS SQL Injection Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
7.2, high high CVSS v3.1
EPSS, next 30 days
0.5% higher than 42.1% of scored CVEs
Exploitation
No public evidence
Published
15 Sept 2026a month ago

Description

In Concrete CMS before 9.5.3, the Document Library block stored the file-set identifiers submitted through fsID[] without validating them as integers, and when the block was configured with setMode set to any it concatenated each stored identifier directly into the file-set filter query instead of casting it or binding it as a parameter. An authenticated user permitted to add or edit a Document Library block could therefore persist SQL syntax in the block configuration (btDocumentLibrary.setIds), and that stored expression was executed every time the published page containing the block was rendered, producing stored, time-based blind SQL injection. The Concrete CMS security team gave this vulnerability a CVSS v4.0 score of 8.5 with vector CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N. Thanks Habib Allah for reporting.

Details

Vendor
Concrete CMS
Product
Concrete CMS
Weakness
CWE-89 (opens in a new tab)
Status
Analyzed
Updated
22 Sept 2026
Assigner
ff5b8ace-8b95-4078-9743-eac1ca5451de

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

References 1

Other references 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Concrete CMS CVEs

Every Concrete CMS CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-85385 Concrete CMS Cross-Site Scripting Vulnerability EPSS 0.5% 9.6, critical
  • CVE-2026-85387 Concrete CMS Insufficient Session Expiration Vulnerability EPSS 0.3% 7.1, high
  • CVE-2026-18110 Concrete CMS Missing Authorization Vulnerability EPSS 0.3% 7.5, high
  • CVE-2026-18423 Concrete CMS Authorization Bypass Through User-Controlled Key Vulnerability EPSS 0.2% 7.1, high
  • CVE-2026-18424 Concrete CMS Server-Side Request Forgery Vulnerability EPSS 0.2% 7.1, high
  • CVE-2026-18119 Concrete CMS Cross-Site Scripting Vulnerability EPSS 0.3% 9, critical
  • CVE-2026-81901 Concrete CMS Missing Authorization Vulnerability EPSS 0.4% 8.7, high
  • CVE-2026-81902 Concrete CMS Cross-Site Request Forgery Vulnerability EPSS 0.2% 8.1, high

Beyond this page

Is CVE-2026-81895 in your network?

This page tells you how dangerous CVE-2026-81895 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

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    Find it before attackers do

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  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.