CVE-2026-48219: Open ISES Tickets < 3.44.2 Reflected XSS via ics202.php frm_add_str Parameter
Open ISES Tickets before 3.44.2 contains a reflected cross-site scripting vulnerability in ics202.php that allows authenticated attackers to inject arbitrary JavaScript by passing an unsanitized value through the frm_add_str POST parameter directly into an HTML form hidden input value attribute. Attackers can craft a malicious request containing a JavaScript payload that executes in the victim's browser when the response is rendered.
Security readout for executives and security teams
Plain-English summary
Open ISES Tickets before 3.44.2 can let an authenticated attacker place script content into a crafted response. The script runs only when a victim renders that response, potentially exposing browser-accessible information or enabling limited actions as the victim. The supplied CVSS score is 5.4, indicating moderate severity.
Executive priority
Schedule remediation in the normal near-term patch cycle, prioritizing internet-accessible or broadly accessible deployments. Escalate urgency where untrusted authenticated users can target administrators. There is no supplied evidence of active exploitation or availability impact.
Technical view
The reflected XSS occurs in ics202.php because the frm_add_str POST value is inserted unsanitized into a hidden input's value attribute. Exploitation requires network access, low privileges, and victim interaction. The CVSS 3.1 vector indicates changed scope, low confidentiality and integrity impact, and no availability impact.
Likely exposure
Likely exposure is limited to deployments running versions earlier than 3.44.2 where authenticated users can reach ics202.php and persuade another user to render a crafted response. The source bundle's structured affected-version data is inconsistent, listing version "0" with default status unaffected, so inventory confirmation is important.
Exploitation context
The supplied sources do not establish active exploitation, and the CVE is not identified as being in KEV. Abuse requires an authenticated attacker plus victim interaction. This reduces immediacy but does not eliminate risk, particularly where lower-privileged users can target administrators or other trusted users.
Researcher notes
CWE-79 applies. The described sink is an HTML attribute context, so remediation should ensure context-appropriate output encoding rather than relying only on generic filtering. The patch commit is the strongest supplied remediation reference. Validate version applicability carefully because the structured affected entry conflicts with the narrative statement that releases before 3.44.2 are affected.
Mitigation direction
Upgrade Open ISES Tickets to version 3.44.2 or later.
Review the vendor patch and release notes before deployment.
Restrict access to authenticated, trusted users until upgrading.
Use normal change controls and preserve rollback capability.
Validation and detection
Inventory Open ISES Tickets installations and confirm their exact versions.
Verify that version 3.44.2 or later is deployed.
Confirm the referenced patch is present in maintained installations.
Test safely that frm_add_str is encoded within the hidden input value.
Review application and proxy logs for suspicious ics202.php requests.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
cwe · medium confidence lookup
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-79 · source CWE mapping
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.