Security readout for executives and security teams
Plain-English summary
Open ISES Tickets versions before 3.44.2 can return attacker-controlled 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 with the victim’s application privileges.
Executive priority
Schedule remediation promptly through the normal vulnerability process. Prioritize externally accessible or broadly shared installations because authenticated attackers can target other users. Emergency action is not supported by the available evidence, but delayed patching preserves an avoidable browser-session risk.
Technical view
CVE-2026-48220 is reflected cross-site scripting in ics205.php. The frm_add_str POST value is inserted without adequate sanitization into a hidden HTML input value attribute. The CVSS 3.1 score is 5.4: network reachable, low complexity, low privileges required, user interaction required, changed scope, and limited confidentiality and integrity impact.
Likely exposure
Deployments running Open ISES Tickets earlier than 3.44.2 are potentially exposed when authenticated users can reach ics205.php. Internet accessibility increases phishing opportunity but is not required. The bundle’s structured affected-version entry is inconsistent with its description, so confirm installed versions directly rather than relying solely on automated CPE matching.
Exploitation context
The supplied sources describe a crafted authenticated request that executes script when a victim renders the response. Victim interaction is required. The source bundle marks this CVE as absent from KEV and provides no evidence of active exploitation; exploit prevalence is therefore unknown.
Researcher notes
The vulnerable data flow is frm_add_str POST input into a hidden input value attribute in ics205.php, categorized as CWE-79. Review the cited commit for the precise encoding change. The bundle states versions before 3.44.2 are affected, although its structured affected record lists version “0” with default status unaffected; treat automated inventory matches cautiously.
Mitigation direction
- Upgrade Open ISES Tickets to version 3.44.2 or later.
- Review the referenced vendor patch and release notes before deployment.
- Until upgraded, restrict application access to trusted users and networks.
- Investigate unexpected authenticated requests to ics205.php.
Validation and detection
- Identify every Open ISES Tickets deployment and record its installed version.
- Confirm each deployment runs version 3.44.2 or later.
- Verify the vendor patch prevents unsafe frm_add_str output encoding.
- Review access logs for suspicious POST requests targeting ics205.php.
- Retest safely in an authorized non-production environment.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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-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 lookupCVE-2026-48220 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- 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
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.
SSVC decision data
CVSS vector scores
2 official scoresWe 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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N2.32.7VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N——VulnCheckVulnerability scoring details
Base CVSS 4.0 score
5.1MediumVector: 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
Base CVSS 3.1 score
5.4MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/openises/tickets/releases/tag/v3.44.2CVE reference, VulnCheck · release-notes
- https://github.com/openises/tickets/commit/ecfeb406a016766cae81c749e14b5145a9f2dbffCVE reference, VulnCheck · patch
- https://www.vulncheck.com/advisories/open-ises-tickets-reflected-xss-via-ics205-php-frm-add-str-parameterCVE reference, VulnCheck · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
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.