CVE-2026-23489: pluginsGLPI fields · Improper Input Validation
Affects pluginsGLPI fieldsSource CVE Database V5
Not known to be exploited · CVSS 9.1 Critical : upgrade to 1.23.3 as a priority.
Data as of 30 Oct 2026, 11:52 UTC
Contested
Critical score, yet low EPSS after six months- EPSS
- 0.3% chance of exploitation in 30 days – higher than 23% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 1.23.3
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 16 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
Public exploit code: GitHub proofs of concept
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), GitHub proofs of concept, the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Upgrade fields and pluginsglpi/fields to 1.23.3.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| pluginsGLPIfields | Affected
| Fixed in
|
GitHubpluginsglpi/fieldspkg:github/pluginsglpi/fieldsOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
To mitigate CVE-2026-23489, organizations should immediately upgrade the 'fields' plugin to version 1.23.3 or later, where the vulnerability has been patched. In addition to patching, organizations should audit user permissions to ensure that only trusted and necessary users have the ability to create dropdowns or manage plugin configurations. Implement strict role-based access controls (RBAC) and regularly review user privileges to minimize the risk of insider threats or compromised accounts. Employ web application firewalls (WAFs) with rules designed to detect and block suspicious PHP code injection attempts. Monitor logs for unusual activity related to plugin usage or PHP execution. Where possible, isolate GLPI servers within segmented network zones to limit potential lateral movement. Finally, maintain regular backups of GLPI data and configurations to enable rapid recovery in case of compromise.
Description
Fields is a GLPI plugin that allows users to add custom fields on GLPI items forms. Prior to version 1.23.3, it is possible to execute arbitrary PHP code from users that are allowed to create dropdowns. This issue has been patched in version 1.23.3.