PT-2026-37344 · Zabbix+3 · Zabbix

Bananabr + 2 · Published 2026-05-06 · Updated 2026-05-08 · CVE-2026-23926

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions The product name cannot be determined (affected versions not specified)

Description An authenticated administrator without super-user privileges can inject a JavaScript payload when creating a maintenance period. This payload is executed when any user opens the tooltip for that specific maintenance period within the Host navigator widget, potentially allowing the attacker to perform unauthorized actions based on the permissions of the user who triggers the tooltip.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

XSS

Weakness Enumeration

CWE-79

Related Identifiers

BDU:2026-06431

CVE-2026-23926

Affected Products

Zabbix

References · 13

• https://osv.dev/vulnerability/DEBIAN-CVE-2026-23926 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-23926 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-23926 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-23926 · Security Note
• https://bdu.fstec.ru/vul/2026-06431 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2026-23926 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23926 · Vendor Advisory
• https://t.me/cveNotify/162292 · Telegram Post
• https://altsp.su/obnovleniya-bezopasnosti · Note
• https://support.zabbix.com/browse/ZBX-27758 · Note
• https://t.me/CVEtracker/52824 · Telegram Post
• https://twitter.com/VulmonFeeds/status/2051969468675281013 · Twitter Post
• https://twitter.com/the_yellow_fall/status/2052559105735504377 · Twitter Post