SemcmsApplication · Sem Cms

CVE-2026-1552

CRITICAL · 9.8 CVSS v3.1 Published 2026-01-29
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Public exploit Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
A security vulnerability has been detected in SEMCMS 5.0. This vulnerability affects unknown code of the file /SEMCMS_Info.php. The manipulation of the argument searchml leads to sql injection. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

SQL injection vulnerability in SEMCMS 5.0's /SEMCMS_Info.php file. The searchml parameter is not properly sanitized, allowing remote attackers to inject arbitrary SQL queries. The vulnerability has a CVSS score of 9.8 (Critical) due to the ease of remote exploitation and potential for complete database compromise.

MitigationImplement parameterized queries or prepared statements for all database operations involving user input. Validate and sanitize the searchml parameter before using it in SQL queries. Since the vendor did not respond, consider applying custom fixes or consulting SEMCMS directly for an official patch.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
SemcmsApplication
Affected:= 5.0

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Confirm SEMCMS installation
    Check the web server for the presence of SEMCMS files, specifically locate /SEMCMS_Info.php in the web root or application directory.
    Affected if SEMCMS files exist on the server with the vulnerable file present
  2. Identify SEMCMS version
    Locate version information by checking version files, admin panel about page, or footer/source code references. Compare installed version to the affected version 5.0.
    Affected if Installed version is 5.0
  3. Verify file is web-accessible
    Confirm that /SEMCMS_Info.php is reachable via HTTP/HTTPS without authentication requirements.
    Affected if The vulnerable file is directly accessible over the network without login
  4. Check parameter exposure
    Test whether the searchml parameter is accepted at /SEMCMS_Info.php without authentication by submitting a test request.
    Affected if The searchml parameter can be submitted without authentication

The environment is affected if SEMCMS version 5.0 is installed and the /SEMCMS_Info.php file accepts the searchml parameter without authentication.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Implement parameterized queries or prepared statements for all database operations involving user input. Validate and sanitize the searchml parameter before using it in SQL queries. Since the vendor did not respond, consider applying custom fixes or consulting SEMCMS directly for an official patch.

Fix this in Semcms Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,490
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Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-1552 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data