CVE-2022-40626 | Reflected XSS in the backurl parameter of Zabbix Frontend

An unauthenticated user can create a link with reflected Javascript code inside the backurl parameter and send it to other authenticated users in order to create a fake account with predefined login, password and role in Zabbix Frontend.

Published: 2022-09-14 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-40626 is rated Low Risk (34.1/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.65%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2022-40626

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 1.88% 0.65% -1.23%
2 2025-09-22 1.52% 1.88% +0.36%
3 2025-09-20 — 1.52% —

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-40626

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.8 3.1 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 0.5 4.2 [email protected]
6.1 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 2.7 [email protected]

Weakness enumeration for CVE-2022-40626

OS Trackers for CVE-2022-40626

vendor priority summary link
debian unimportant CVE-2022-40626 unimportant priority: Debian including 1 source packages (zabbix), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2022-40626
suse high CVE-2022-40626 severity important: SUSE including 2 source package names (zabbix, zabbix-agent), 18 product×package rows across 11 product lines (SUSE Linux Enterprise High Performance Computing 12 SP5, SUSE Linux Enterprise Server 12 SP3-BCL, … (11 product lines)): Known Not Affected 18. https://www.suse.com/security/cve/CVE-2022-40626/
ubuntu medium CVE-2022-40626 medium priority: Ubuntu including 1 source packages (zabbix), 12 status rows across 12 suites (bionic, focal, jammy, kinetic, lunar, mantic, noble, oracular, plucky, trusty, upstream, xenial): not-affected 10, DNE 1, released 1. https://ubuntu.com/security/CVE-2022-40626

Affected software / configurations for CVE-2022-40626

Vendor Product Version Raw CPE
zabbix zabbix >= 6.0.0, <= 6.0.6 cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*
zabbix zabbix 6.2.0 cpe:2.3:a:zabbix:zabbix:6.2.0:*:*:*:*:*:*:*
fedoraproject fedora 37 cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*

References for CVE-2022-40626

cvelogic Threat Intelligence