CVE-2026-33061 | Jexactyl has Stored DOM Cross-Site Scripting (XSS) via unescaped JSON in Blade template

Exp

Jexactyl is a customisable game management panel and billing system. Commits after 025e8dbb0daaa04054276bda814d922cf4af58da and before e28edb204e80efab628d1241198ea4f079779cfd inject server-side objects into client-side JavaScript through resources/views/templates/wrapper.blade.php. Using unescaped {!! json_encode(...) !!} without safe encoding flags allows string values to break out of the JavaScript context and be interpreted as HTML/JS by the browser. If any serialized fields contain attacker-controlled content, such as a username, display name, or site config value, a malicious payload will execute arbitrary script for any user viewing the page (stored DOM XSS). This issue has been patched by commit e28edb204e80efab628d1241198ea4f079779cfd.

Published: 2026-03-20 Last update: 2026-04-14 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-33061 is rated Exploit Available (50/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.02%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2026-33061

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2026-33061

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 2026-03-20 — 0.02% —

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-33061

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.8 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
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: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:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 0.6 5.2 [email protected]
5.4 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/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:L)
A normal user session is enough; they don’t have to be admin.
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.
 2.3 2.7 [email protected]

Weakness enumeration for CVE-2026-33061

Affected software / configurations for CVE-2026-33061

Vendor Product Version Raw CPE
jexactyl jexactyl <= 3.8.0 cpe:2.3:a:jexactyl:jexactyl:*:*:*:*:*:*:*:*
jexactyl jexactyl 4.0.0 cpe:2.3:a:jexactyl:jexactyl:4.0.0:beta1:*:*:*:*:*:*
jexactyl jexactyl 4.0.0 cpe:2.3:a:jexactyl:jexactyl:4.0.0:beta2:*:*:*:*:*:*
jexactyl jexactyl 4.0.0 cpe:2.3:a:jexactyl:jexactyl:4.0.0:beta3:*:*:*:*:*:*
jexactyl jexactyl 4.0.0 cpe:2.3:a:jexactyl:jexactyl:4.0.0:beta4:*:*:*:*:*:*
jexactyl jexactyl 4.0.0 cpe:2.3:a:jexactyl:jexactyl:4.0.0:beta5:*:*:*:*:*:*
jexactyl jexactyl 4.0.0 cpe:2.3:a:jexactyl:jexactyl:4.0.0:beta6:*:*:*:*:*:*
jexactyl jexactyl 4.0.0 cpe:2.3:a:jexactyl:jexactyl:4.0.0:beta7:*:*:*:*:*:*
jexactyl jexactyl 4.0.0 cpe:2.3:a:jexactyl:jexactyl:4.0.0:rc1:*:*:*:*:*:*
jexactyl jexactyl 4.0.0 cpe:2.3:a:jexactyl:jexactyl:4.0.0:rc2:*:*:*:*:*:*

References for CVE-2026-33061

cvelogic Threat Intelligence