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8.8High

CVE-2020-15876

An issue was discovered in LibreNMS 1.65. A remote authenticated attacker with normal privileges can extract all the information from the LibreNMS database via a SQL injection in the sort parameter in the /ajax_table.php API endpoint. This affects address-search.inc.php, alertlog.inc.php, arp-search.inc.php, as-selection.inc.php, bills.inc.php, device_mibs.inc.php, device_oids.inc.php, edit-ports.inc.php, eventlog.inc.php, inventory.inc.php, ix-list.inc.php, ix-peers.inc.php, mempool-edit.inc.php, mempool.inc.php, mibs.inc.php, poll-log.inc.php, processor-edit.inc.php, processor.inc.php, routing-edit.inc.php, sensors-common.inc.php, storage-edit.inc.php, storage.inc.php, tnmsneinfo.inc.php, and toner.inc.php (in includes/html/table).

What this means for your business

  • An attacker can use it remotely, over a network, with an ordinary user login, and without anyone at your company clicking anything.
  • FIRST's prediction model gives it a 0.3% chance of attack attempts being seen in the next 30 days, ranking above 27% of all known flaws.

What to do

  1. 1Ask your IT team or provider whether any of your systems use the affected product.
  2. 2If you do, follow the vendor's guidance. No patch reference has been published yet.

Not sure if your company is exposed?

Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.

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Scoring

CVSS
8.8 (v3.1)
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-89
Assigned by
cve@mitre.org

Dates

Published
2026-08-26
Last modified
2026-09-03
Sources
NVD

References