CVE-2026-35012Network attack vector

Authenticated script execution via unescaped ticket_id attribute

Published May 20, 2026 · Updated May 20, 2026

Reflected XSS in Open ISES Tickets CAD before 3.44.2 allows remote authenticated users to execute JavaScript through a crafted ticket_id. In add_facnote.php, the ticket_id GET value is printed directly into a hidden input VALUE attribute without HTML attribute encoding. A victim must visit the crafted URL; the resulting script can read or alter browser-accessible page data, but the flaw does not interrupt the service.

CVSS severity5.1
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Open ISES Tickets CAD before 3.44.2 allows remote authenticated users to execute JavaScript through a crafted ticket_id. In add_facnote.php, the ticket_id GET value is printed directly into a hidden input VALUE attribute without HTML attribute encoding. A victim must visit the crafted URL; the resulting script can read or alter browser-accessible page data, but the flaw does not interrupt the service.

The record

CVE
CVE-2026-35012
Published
May 20, 2026
Updated
May 20, 2026
Vendor
Open ISES
Product
Tickets CAD
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 20, 2026CVE publishedPublication date reported by the CVE source.
  2. May 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <3.44.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Open ISES · Tickets CADversion=0 <3.44.2

Published CVSS scores

5.1VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
4.6NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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