CVE-2021-30461
CVE-2021-30461 is a critical-severity vulnerability in Voipmonitor with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 37% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-94.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 7.5
- EPSS exploit prediction: 37% (98th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-94
- Affected product: Voipmonitor
- Published:
- Last modified:
Description
A remote code execution issue was discovered in the web UI of VoIPmonitor before 24.61. When the recheck option is used, the user-supplied SPOOLDIR value (which might contain PHP code) is injected into config/configuration.php.
Frequently asked questions
- What is CVE-2021-30461?
- A remote code execution issue was discovered in the web UI of VoIPmonitor before 24.61. When the recheck option is used, the user-supplied SPOOLDIR value (which might contain PHP code) is injected into config/configuration.php.
- How severe is CVE-2021-30461?
- CVE-2021-30461 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-30461 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 37% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-30461?
- CVE-2021-30461 affects Voipmonitor. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-30461?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2021-30461 published?
- CVE-2021-30461 was published on 2021-05-29 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:voipmonitor:voipmonitor:*:*:*:*:*:*:*:*
More vulnerabilities in Voipmonitor
- CVE-2021-41408 — Critical (CVSS 9.8): VoIPmonitor WEB GUI up to version 24.61 is affected by SQL injection through the "api.php" file and "user" parameter.
- CVE-2022-24260 — Critical (CVSS 9.8): A SQL injection vulnerability in Voipmonitor GUI before v24.96 allows attackers to escalate privileges to the…
- CVE-2022-24259 — Critical (CVSS 9.8): An incorrect check in the component cdr.php of Voipmonitor GUI before v24.96 allows unauthenticated attackers to…
- CVE-2022-24262 — High (CVSS 8.8): The config restore function of Voipmonitor GUI before v24.96 does not properly check files sent as restore archives,…
All CVEs affecting Voipmonitor →
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