A reflected cross-site scripting (XSS) vulnerability is present in an unauthenticated Aruba Instant web interface.
A reflected cross-site scripting (XSS) vulnerability is present in an unauthenticated Aruba Instant web interface. An attacker could use this vulnerability to trick an IAP administrator into clicking a link which could then take administrative actions on the Instant cluster, or expose the session cookie for an administrative session. Workaround: Administrators should make sure they log out of the Aruba Instant UI when not actively managing the system, and should use caution clicking links from external sources while logged into the IAP administrative interface. Resolution: Fixed in Aruba Instant 4.2.4.12, 6.5.4.11, 8.3.0.6, and 8.4.0.0
- Published
- May 10, 2019
- Updated
- Jun 16, 2026
- EPSS
- 1.4% · 72th percentile
- CWE
- CWE-79
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Report tools
Action score
24
Monitor
Low priority for now.
- CVSS
- 24 / 40 · 6.1 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 1.4%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| arubanetworks | aruba instant | cpe:2.3:a:arubanetworks:aruba_instant |
| siemens | scalance w1750d firmware | cpe:2.3:o:siemens:scalance_w1750d_firmware |
| siemens | scalance w1750d | cpe:2.3:h:siemens:scalance_w1750d |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- arubanetworks aruba instant4.0 and later · before 4.2.4.12
- arubanetworks aruba instant6.5.0 and later · before 6.5.4.11
- arubanetworks aruba instant8.3.0 and later · before 8.3.0.6
- arubanetworks aruba instant8.4.0 and later · before 8.4.0.1
- siemens scalance w1750d firmwarebefore 8.4.0.1
Versions reported by the vendor
Affected version ranges reported by the assigning authority (hpe). Independent of NVD's CPE analysis and usually ahead of it.
n/a Aruba Instant (IAP)
- Aruba Instant 4.x prior to 6.4.4.8 - 4.2.4.12 Aruba Instant 6.5.x prior to 6.5.4.11 Aruba Instant 8.3.x prior to 8.3.0.6 Aruba Instant 8.4.x prior to 8.4.0.1affected
Same product
arubanetworks: all recordsOther highest-scoring records for the same primary product.
- CVE-2021-37726A remote buffer overflow vulnerability was discovered in HPE Aruba Instant (IAP) version(s): Aruba Instant 8.7.x.x: 8.7.0.0 through 8.7.1.2.40Plan
- CVE-2018-7084A command injection vulnerability is present that permits an unauthenticated user with access to the Aruba Instant web interface to execute 40Plan
- CVE-2018-7083If a process running within Aruba Instant crashes, it may leave behind a "core dump", which contains the memory contents of the process at t31Monitor
- CVE-2021-37732A remote arbitrary command execution vulnerability was discovered in HPE Aruba Instant (IAP) version(s): Aruba Instant 6.4.x.x: 6.4.4.8-4.2.29Monitor
- CVE-2021-37730A remote arbitrary command execution vulnerability was discovered in HPE Aruba Instant (IAP) version(s): Aruba Instant 6.4.x.x: 6.4.4.8-4.2.29Monitor
- CVE-2021-37727A remote arbitrary command execution vulnerability was discovered in HPE Aruba Instant (IAP) version(s): 6.4.x.x: 6.4.4.8-4.2.4.18 and below29Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
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Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- A user must open a link or visit a page.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- low · data can be read
- Integrity
- low · data or configuration can be modified
- Availability
- none
Impact can extend beyond the vulnerable component (scope changes).
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- Required
- Scope
- Changed
- Confidentiality impact
- Low
- Integrity impact
- Low
- Availability impact
- None
Weakness class (CWE)
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
nvd-primary
Root cause
User content is inserted into the page as HTML. The browser interprets the content as code rather than data.
The bug in code
The whole CWE-79 classA representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.
Vulnerable
commentEl.innerHTML = comment.body;Fixed
commentEl.textContent = comment.body;Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
ATT&CK techniques
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Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
- www.securityfocus.com/bid/108374
- cert-portal.siemens.com/productcert/pdf/ssa-549547.pdf
- www.arubanetworks.com/assets/alert/ARUBA-PSA-2019-001.txt
Vendor advisories and official records. Exploit/PoC links are deliberately left out.