CVE-2021-44277
CVE-2021-44277 is a medium-severity vulnerability in Librenms with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: Medium (CVSS 3.x base score 6.1)
- CVSS v2: 4.3
- EPSS exploit prediction: 1% (46th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Librenms
- Published:
- Last modified:
Description
Librenms 21.11.0 is affected by a Cross Site Scripting (XSS) vulnerability in includes/html/common/alert-log.inc.php.
Frequently asked questions
- What is CVE-2021-44277?
- Librenms 21.11.0 is affected by a Cross Site Scripting (XSS) vulnerability in includes/html/common/alert-log.inc.php.
- How severe is CVE-2021-44277?
- CVE-2021-44277 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2021-44277 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-44277?
- CVE-2021-44277 affects Librenms. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-44277?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-44277 published?
- CVE-2021-44277 was published on 2021-12-01 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:librenms:librenms:21.11.0:*:*:*:*:*:*:*
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- CVE-2022-4070 — Critical (CVSS 9.8): Insufficient Session Expiration in GitHub repository librenms/librenms prior to 22.10.0.
- CVE-2022-29712 — Critical (CVSS 9.8): LibreNMS v22.3.0 was discovered to contain multiple command injection vulnerabilities via the service_ip, hostname, and…
- CVE-2021-44278 — Critical (CVSS 9.8): Librenms 21.11.0 is affected by a path manipulation vulnerability in includes/html/pages/device/showconfig.inc.php.
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