Security audit

WeChat Publisher

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed WeChat publishing CLI that uses official WeChat APIs and requires explicit commands for account changes.

Install only for a WeChat public account you are authorized to manage. Treat the AppID/AppSecret, article drafts, uploaded media, analytics, and comments as sensitive, and review commands carefully before using --confirm for publishing or deletion.

A.I.G

Vulnerability Patterns

Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
Agent Memory PoisoningWrites attacker-controlled rules into memory that affect later sessions
Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs

SkillSpector

Vulnerability Patterns

Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code

Findings (6)

Ae1

High

Category: analysis-evasion
Confidence: 100% confidence
Finding: Referenced artifact was not completely inspected
Content: Scanner excerpt · SKILL.md (reported line 106)May include surrounding context.
md
python3 scripts/publish_wechat.py draft create articles.json

Natural-Language Policy Violations

Medium

Category: Not specified by scanner
Confidence: 95% confidence
Finding: User-facing docstrings, errors, help text, and prompts are all written in Chinese, and the tool does not provide any language or locale selection. This effectively forces a specific language experience without user opt-in, which matches the stated natural-language policy violation criteria.
Content: No source excerpt is available for this finding.

External Transmission

Medium

Category: Data Exfiltration
Confidence: 60% confidence
Finding: Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
Content: Scanner excerpt · scripts/publish_wechat.py (reported line 25)May include surrounding context.
python
# ── Constants ───────────────────────────────────────────── WECHAT_API_BASE = "https://api.weixin.qq.com/cgi-bin" DATACUBE_BASE = "https://api.weixin.qq.com/datacube" RATE_LIMIT_DAY = 2000 RATE_LIMIT_WINDOW = 86400

External Transmission

Medium

Category: Data Exfiltration
Confidence: 60% confidence
Finding: Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
Content: Scanner excerpt · scripts/publish_wechat.py (reported line 26)May include surrounding context.
python
# ── Constants ───────────────────────────────────────────── WECHAT_API_BASE = "https://api.weixin.qq.com/cgi-bin" DATACUBE_BASE = "https://api.weixin.qq.com/datacube" RATE_LIMIT_DAY = 2000 RATE_LIMIT_WINDOW = 86400

Scope Creep

Low

Category: Excessive Agency
Confidence: 70% confidence
Finding: Skill's behavior or capabilities extend beyond its stated purpose. Scope creep allows an agent to perform actions unrelated to its documented functionality, increasing the attack surface.
Content: Scanner excerpt · LICENSE.txt (reported line 12)May include surrounding context.
text
permit persons to whom the Software is furnished to do so. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER

Missing User Warnings

Low

Category: Not specified by scanner
Confidence: 83% confidence
Finding: This code retrieves WeChat article statistics and comment data from remote APIs and immediately prints the full JSON responses to stdout. While the network activity is inherent to the tool's purpose, there is no user-facing disclosure that these commands may surface potentially sensitive engagement or comment data in terminals, logs, or pipelines.
Content: No source excerpt is available for this finding.