High Cross-site scripting

CVE-2026-3295 — IBM Cloud Pak System Cross-Site Scripting

IBM Cloud Pak System 2.3.6.0, and 2.3.6.1 is vulnerable to cross site scripting. The web app user‑supplied input is not properly sanitized or HTML‑encoded before being stored and rendered. An authenticated attacker could exploit this vulnerability by entering specially crafted payloads containing malicious JavaScript which are saved within the app and later executed automatically when user views affected pages, resulting in Stored Cross‑Site Scripting (Stored XSS).

Published Oct 19, 2026 · Updated Oct 19, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · CNA: ibm

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

Technical severity (high)+6

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

—

No EPSS score.

Affects

Ibm

Cloud Pak System

CVSS base

7.4

High · 2 source(s)

CISA SSVC assessment CISA

Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.

Exploitation

None

none · proof-of-concept · active

Automatable

can an attacker script the kill-chain steps

Technical impact

Partial

partial · total control of the vulnerable component

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Ibm Cloud Pak System).
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Search available logs for exploit probes matching the vulnerability class (cross-site scripting), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Ibm	Cloud Pak System	version 2.3.6.0version 2.3.6.1	Vulnerable	CVE Program (cve.org) e CISA ADP

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector

Network

Attack complexity

Low

Privileges required

Low

User interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Scored by
7.4	CVSS 3.1	High	3.1	3.7	psirt@us.ibm.com via NIST National Vulnerability Database
7.4	CVSS 3.1	High	—	—	ibm via CVE Program (cve.org) e CISA ADP

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L (score shown at the top: psirt@us.ibm.com)

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-79 · Cross-site Scripting (XSS)

Other CVEs with this weakness →

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).
Monitor CSP violation reports and script payloads in reflected parameters.

web/proxy/WAF logsnetwork IDS/IPSapplication logs

Timeline

What happened to this CVE, newest first.

2026
Source status changed · Received → Awaiting Analysis
Oct 19, 2026 · NIST National Vulnerability Database
Affected products added · ibm/cloud pak system
Oct 19, 2026 · CVE Program (cve.org) e CISA ADP
SSVC assessment updated
Oct 19, 2026 · CVE Program (cve.org) e CISA ADP
Record published
Oct 19, 2026
CVSS changed · 7.4
Oct 19, 2026 · NIST National Vulnerability Database
Source status changed · → Received
Oct 19, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 19, 2026 · NIST National Vulnerability Database
CVE published
Oct 19, 2026 · ibm

Source activity

Repeated readings are counted rather than listed.

1× Official description updated · Oct 19, 2026 – Oct 19, 2026

References

1 on the record

www.ibm.com/support/pages/node/7290183
vendor-advisory, patch, NIST National Vulnerability Database

Elsewhere on this site

Ibm
every CVE for this vendor

Cross-site scripting
same class

CWE-79
other pages naming this weakness

Related CVEs (same products)

Medium CVE-2026-3161 IBM Cloud Pak System Risky Cryptographic Algorithm 6h
Medium CVE-2026-4418 IBM Cloud Pak System HTML Injection 6h
Medium CVE-2023-38375 IBM Cloud Pak System Cross-Site Scripting 6h
High CVE-2026-13463 Due to use of IBM Storage Protect, IBM Cloud Pak System is affected by vulnerability [] Jul 28, 2026
Medium CVE-2023-38005 Improper Access Control and Exposure of Information Through Directory Listing vulnerabilities affect IBM Cloud Pak System[, ] Feb 17, 2026
Medium CVE-2023-38265 Improper Access Control and Exposure of Information Through Directory Listing vulnerabilities affect IBM Cloud Pak System[, ] Feb 17, 2026

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No FIRST EPSS score.
No fixed version, patch or mitigation documented.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-3295 is "IBM Cloud Pak System Cross-Site Scripting", rated High. It affects Cloud Pak System (Ibm); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 7.4 describes technical severity. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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