CVE-2023-30542 — CVE & Security Advisory Radar

🎯 CVE-2023-30542 MEDIUM 6.8 🔥 EPSS 58% 🧪 PoC 🇪🇺 EUVD

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CVE-2023-30542 | OpenZeppelin Contracts is a library for secure smart contract development. The proposal creation entrypoint (`propose`) in `GovernorCompatibilityBravo` allows the creation of proposals with a `signatures` array shorter than the `calldatas` array. This causes the additional elements of the latter to be ignored, and if the proposal succeeds the corresponding actions would eventually execute without any calldata. The `ProposalCreated` event correctly represents

OpenZeppelin Contracts is a library for secure smart contract development. The proposal creation entrypoint (`propose`) in `GovernorCompatibilityBravo` allows the creation of proposals with a `signatures` array shorter than the `calldatas` array. This causes the additional elements of the latter to be ignored, and if the proposal succeeds the corresponding actions would eventually execute without any calldata. The `ProposalCreated` event correctly represents what will eventually execute, but the proposal parameters as queried through `getActions` appear to respect the original intended calldata. This issue has been patched in 4.8.3. As a workaround, ensure that all proposals that pass through governance have equal length `signatures` and `calldatas` parameters.

Klassifikation & Betroffenheit:

OpenZeppelin openzeppelin-contracts 4.3.0, < 4.8.3openzeppelin contracts *openzeppelin contracts_upgradeable *

Improper Control of Generation of Code ('Code Injection') 🎯 Medium

The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

🛡️ Empfohlene Mitigation: Refactor your program so that you do not have to dynamically generate code.

Vollständige Definition bei MITRE ➔

⚔️ Typische Angriffsmuster (CAPEC):

CAPEC-35 · Leverage Executable Code in Non-Executab… (Very High) CAPEC-77 · Manipulating User-Controlled Variables (Very High) CAPEC-242 · Code Injection (High)

🎯 ATT&CK-Techniken (Kill-Chain-Verhalten):

T1027.006 · Obfuscated Files or Information: H… T1027.009 · Obfuscated Files or Information: E… T1564.009 · Hide Artifacts: Resource Forking

🧩 Ähnliche Schwachstellen (Hersteller/Klasse/Score-Band):

CVE-2022-35961 7.9 CVE-2022-31198 7.5 CVE-2022-31170 7.5 CVE-2022-31172 7.5 CVE-2025-54070 6.9

🩹 Patch verfügbar (OSV):

🩹 0a25c1940ca220686588c4af3ec526f725fe2582 (Commit) 🩹 58fa0f81c4036f1a3b616fdffad2fd27e5d5ce21 (Commit)

📚 Referenzen & Quellen:

🇪🇺 Original-Eintrag (ENISA EUVD) 🇺🇸 NVD-Eintrag

Ausnutzungs-Zeitleiste:

Reserviert 2023

Veröffentlicht 04/2023

Heute 13.09.

CVSS-Vektor-Analyse: 6.8

AV · Angriffsvektor Netzwerk

AC · Komplexität Gering

PR · Privilegien Gering

UI · Interaktion Erforderlich

S · Scope Unverändert

C · Vertraulichkeit Gering

I · Integrität Hoch

A · Verfügbarkeit Gering

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

Veröffentlicht:16.04.2023

Aktualisiert:17.06.2026 05:54

Assigner (CNA):GitHub_M

EUVD-ID:EUVD-2023-1247

Quellen: 🇪🇺 EUVD-Datenbank (ENISA) + 🇺🇸 NVD-Anreicherung · 24-h-Cache

CWE-94: Code Injection ✓ Offizieller Patch / Advisory verfügbar

💡 Gegenmaßnahme: Sicherheits-Update des Herstellers zeitnah einspielen und Netzwerksegmentierung prüfen.

Tier	2026-08-29	2026-09-12
≥90 %	4	0
≥50 %	4	0
≥10 %	3	0
<10 %	304	300

6.8 MEDIUM

🇪🇺 EUVD

EPSS

58%

CVE-2023-30542 🌐 Netzwerk (Remote) 🔑 Geringe Nutzerrechte nötig

🧪 OpenZeppelin

CVE-2023-30542 | OpenZeppelin Contracts is a library for secure smart contract development. The proposal creation entrypoint (`propose`) in `GovernorCompatibilityBravo` allows the creation of proposals with a `signatures` array shorter than the `calldatas` array. This causes the additional elements of the latter to be ignored, and if the proposal succeeds the corresponding actions would eventually execute without any calldata. The `ProposalCreated` event correctly represents

CWE-94: Code Injection ✓ Offizieller Patch / Advisory verfügbar

💡 Gegenmaßnahme: Sicherheits-Update des Herstellers zeitnah einspielen und Netzwerksegmentierung prüfen.

16.04.2023

🛡️ Details ➔

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