LiveActive security incident?Get immediate response
CVE Record

CVE-2026-48221: Open ISES Tickets < 3.44.2 Reflected XSS via ics205a.php frm_add_str Parameter

Open ISES Tickets before 3.44.2 contains a reflected cross-site scripting vulnerability in ics205a.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.

MediumCVSS 5.4Not KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

Open ISES Tickets versions before 3.44.2 can return attacker-supplied content that runs as JavaScript in another user's browser. Exploitation requires an authenticated attacker and victim interaction. Successful abuse could expose limited browser-accessible information or let the attacker perform actions within the victim's session context.

Executive priority

Schedule prompt remediation, especially for internet-accessible or multi-user systems with untrusted accounts. The moderate score and interaction requirement reduce urgency versus unauthenticated compromise, but browser-session abuse can still affect sensitive workflows. Escalate priority if administrators commonly process attacker-influenced requests.

Technical view

CVE-2026-48221 is reflected cross-site scripting in ics205a.php. The frm_add_str POST parameter is inserted without adequate sanitization into a hidden HTML input value attribute. The CVSS 3.1 score is 5.4: network-accessible, low complexity, authenticated access required, user interaction required, changed scope, and low confidentiality and integrity impact.

Likely exposure

Deployments running Open ISES Tickets earlier than 3.44.2 are potentially exposed when authenticated users can reach ics205a.php. Risk is greater where untrusted or lower-privileged users have accounts and can induce another user to render a crafted response. The supplied evidence does not identify affected configurations beyond the version and endpoint.

Exploitation context

The supplied sources describe a crafted authenticated POST request followed by victim interaction. No KEV listing or cited evidence establishes active exploitation in the wild. Public advisory and patch references may make the flaw easier to investigate, but operational exploitation prevalence is unknown.

Researcher notes

The documented sink is a hidden input value attribute populated from frm_add_str in ics205a.php. Validation should focus on contextual HTML attribute encoding and regression behavior without executing active payloads. The bundle supports versions before 3.44.2 and a vendor patch; it does not provide evidence of mass exploitation or broader affected endpoints.

Mitigation direction

  • Upgrade Open ISES Tickets to version 3.44.2 or later.
  • Review the referenced vendor patch and release notes before deployment.
  • Restrict untrusted authenticated access until upgrading is complete.
  • Follow any additional vendor guidance for supported deployments.

Validation and detection

  • Inventory Open ISES Tickets versions and identify installations earlier than 3.44.2.
  • Confirm authenticated users can reach ics205a.php where applicable.
  • Verify the 3.44.2 patch or equivalent output-encoding change is present.
  • Test safely that frm_add_str is encoded within the returned hidden input.
  • Review web logs for suspicious POST requests targeting ics205a.php.
Prepared
Confidence
high
Sources
5

Public sources used

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.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-48221 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.4 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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.

2CVSS vectors
3Timeline events
1ADP providers
4Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

CVSS vector scores

2 official scores

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.

ScoreVersionSeverityVectorExploitImpactSource
5.4CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N2.32.7VulnCheck
5.1CVSS 4.0MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N——VulnCheck

Vulnerability scoring details

Base CVSS 4.0 score

5.1Medium
CVSS 4.0 vector shape for CVE-2026-48221Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Open ISESTickets0unaffected
Weakness

CWE details

CWE-79

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.

Open CWE intelligenceSame-CWE CVEs