Security readout for executives and security teams
Plain-English summary
SVXportal 2.5 and earlier can run attacker-supplied script in an administrator's browser if the administrator opens a crafted link. The business risk is admin-session abuse or unauthorized actions inside the portal, but exploitation depends on administrator interaction.
Executive priority
Treat as a moderate-priority web application issue. Prioritize externally reachable or sensitive SVXportal deployments, but this is not currently supported as an active mass-exploitation emergency by the provided sources.
Technical view
CVE-2026-27504 is CWE-79 reflected XSS in radiomobile_front.php. The stationid query parameter is embedded without sanitization into a hidden input value, allowing script execution in an authenticated administrator context. CVSS v3.1 is 6.1, network exploitable, low complexity, user interaction required, changed scope.
Likely exposure
Organizations running sa2blv SVXportal version 2.5 or earlier are potentially exposed, especially where the admin interface is reachable by browsers that can access external links or email.
Exploitation context
The source bundle does not indicate CISA KEV listing or active exploitation. The described attack requires an authenticated administrator to view a crafted URL, so phishing or targeted link delivery is the plausible path.
Researcher notes
Version evidence is somewhat uneven: the narrative states 2.5 and prior, while the affected metadata is sparse and default status is unknown. No official fix, release note, or exploitation evidence is included in the bundle.
Mitigation direction
- Check SVXportal vendor/project guidance for a fixed release or official patch.
- Restrict administrative access to trusted networks, VPN, or allowlisted management hosts.
- Warn administrators not to open untrusted SVXportal links while authenticated.
- Review custom deployments for output encoding of the stationid value.
- Monitor admin sessions for unexpected actions following suspicious link activity.
Validation and detection
- Inventory SVXportal deployments and identify versions at or below 2.5.
- Confirm whether radiomobile_front.php is present and reachable in the deployed portal.
- Review the stationid handling path for HTML output encoding before closure.
- Use a nonproduction benign marker test to confirm reflected values are encoded.
- Check web logs for unusual stationid query values targeting administrator sessions.
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-2026-27504 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
- 6.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/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:N/UI:R/S:C/C:L/I:L/A:N2.82.7VulnCheckCVSS: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
6.1MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/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/sa2blv/SVXportal/blob/master/radiomobile_front.phpCVE reference, VulnCheck · product
- https://www.vulncheck.com/advisories/svxportal-radiomobile-front-php-stationid-reflected-xssCVE 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.