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Security audit

Glassdoor Salary Data API - Employer Profiles, Salaries, Reviews

Security checks for vulnerabilities and agentic risk

Overview

The skill provides a clearly disclosed Glassdoor lookup workflow through Scavio, with proportionate API access and no hidden persistence.

Scavio receives your searches and uses your API key for authentication. Store the key outside source code and set a query budget. Check the [provider documentation](https://scavio.dev/docs/glassdoor-companies) for current charges, since its company-search credit cost differs from the skill's stated cost.

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
Vulnerability Patterns
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (5)

Description-Behavior Mismatch

High
Category
MCP Tool Poisoning
Confidence
98% confidence
Finding

The supplied chunk only configures an API-key environment variable; it does not implement the declared primary functionality. Setting a credential is a plausible supporting detail, not itself an undeclared capability, but it does not substantiate the advertised behavior. No exfiltration or other unrelated activity is shown.

Content

No source excerpt is available for this finding.

External Transmission

Medium
Category
Data Exfiltration
Confidence
70% 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 · SKILL.md (reported line 142)May include surrounding context.

md
TIMEOUT = 180          # a failing Glassdoor call can take two minutes to report

# 1. ALWAYS START HERE - a name is not an employer id
hits = requests.post(f"{BASE}/api/v1/glassdoor/companies", headers=HEADERS,
    json={"query": "Anthropic"}, timeout=TIMEOUT).json()

employer_id = hits["data"]["results"][0]["employer_id"]   # a STRING

External Transmission

Medium
Category
Data Exfiltration
Confidence
70% 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 · SKILL.md (reported line 148)May include surrounding context.

md
employer_id = hits["data"]["results"][0]["employer_id"]   # a STRING

# 2. Profile - keep the two URLs it hands back
company = requests.post(f"{BASE}/api/v1/glassdoor/company", headers=HEADERS,
    json={"employer_id": employer_id}, timeout=TIMEOUT).json()["data"]

reviews_url, salaries_url = company["reviews_url"], company["salaries_url"]

External Transmission

Medium
Category
Data Exfiltration
Confidence
70% 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 · SKILL.md (reported line 155)May include surrounding context.

md
# 3. Reviews via the saved URL - one lookup instead of two.
#    Up to THREE reviews. There is no page param; move the window with filters.
reviews = requests.post(f"{BASE}/api/v1/glassdoor/reviews", headers=HEADERS,
    json={"url": reviews_url, "category": "work_life_balance",
          "employment_status": "full_time"}, timeout=TIMEOUT).json()["data"]

External Transmission

Medium
Category
Data Exfiltration
Confidence
70% 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 · SKILL.md (reported line 162)May include surrounding context.

md
print(reviews["count"], reviews["filtered_review_count"], reviews["total_review_count"])

# 4. Salary percentiles by job title, 10 per page
salaries = requests.post(f"{BASE}/api/v1/glassdoor/salaries", headers=HEADERS,
    json={"url": salaries_url, "page": 1}, timeout=TIMEOUT).json()["data"]

print(salaries["page"], "of", salaries["page_count"], salaries["pay_period"])

Static analysis

Detected: suspicious.exposed_secret_literal

File appears to expose a hardcoded API secret or token.

Critical
Code
suspicious.exposed_secret_literal
Location
SKILL.md:38