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CVE-2026-55072Proof of concept (PoC) published · CISA

Pimcore: ClassDefinition UID regex missing end anchor allows SQL injection via Block.php unquoted table name

CVSS score

8.5

EPSS probability

%0.4

Risk score

0.0

Published

28 d ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Official patch verified

Etkilenen ürün ve sürüm için yayımlanan güvenlik güncellemesini uygulayın.

Impact on My Inventory

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Vulnerability description

DayBreach CVE AI Research

CVE-2026-55072 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.

Pimcore is an Open Source Data & Experience Management Platform. Prior to 2026.1.5, an authenticated user with the objects permission can submit a malicious ClassDefinition UID because the name and ID validation expressions in models/DataObject/ClassDefinition.php validate only the beginning of each value. When a data object of that class containing a Block field is loaded, Block::load in models/DataObject/ClassDefinition/Data/Block.php incorporates the stored class ID into an unquoted object table identifier, allowing the UID to supply SQL syntax. The resulting query can read or modify arbitrary Pimcore database tables, including disclosure of password hashes, and the flaw represents an incomplete validation hardening because earlier work added a start anchor without enforcing the end of the identifier. This issue is fixed in version 2026.1.5.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-55072 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1Pimcorepimcore View
2packagistpimcore/pimcore View
3packagistpimcore/pimcore View
4packagistpimcore/pimcore View
Total affected vendors: 2|Products: 4

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
8.5CVSS 3.x—Vector not publishedGitHub Advisory
8.5CVSS V31HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:NNVD
8.5CVSS V3_1HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:NCVE CNA
0.0CVSS 4.0—Vector not publishedGitHub Advisory

Patch and Remediation Guide

Solution & Remediation Advisory

Patch verified

2 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

osvpimcore/pimcore2026.1.5

OSV düzeltilmiş sürüm: 2026.1.5

osvpimcore/pimcore12.3.9

OSV düzeltilmiş sürüm: 12.3.9

Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Apply the official update named in the evidence only to the matching product and version.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-55072 is associated with the following CWEs:

CWE-20: Improper Input ValidationCWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-55072 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden
PermissionsLow
UserGerekmiyor

Official Sources and Advisories

https://github.com/pimcore/pimcore/security/advisories/GHSA-2mhj-fhvg-v428vendor-advisoryhttps://github.com/pimcore/pimcore/pull/19177vendor-advisoryhttps://github.com/pimcore/pimcore/commit/33a0e1887e1e31b4283b016ac5440c35ea5697b4vendor-advisoryhttps://github.com/pimcore/pimcore/releases/tag/v2026.1.5vendor-advisoryhttps://github.com/advisories/GHSA-2mhj-fhvg-v428vendor-advisoryhttps://github.com/pimcore/pimcorevendor-advisory

CVSS Vector Radar Chart

8.5 / 10
Attack VectorNetworkComplexityLowPrivilegesLowUser Interact.NoneConfidentialityLowIntegrityNoneAvailabilityNone

Vulnerability Scoring Details

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow privileges
User InteractionNone required
Confidentiality (Gizlilik)Low
Integrity (Bütünlük)None
Availability (Erişilebilirlik)None

Yama doğrulandı

2 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

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Weakness Type (CWE & CAPEC)

CWE-20 CWE-89

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