CVE-2026-18541: IBM Planning Analytics 2.0, and 2.1 is vulnerable to stored cross-site scripting

Routine

MEDIUM 6.4DOWNGRADE

CVE-2026-18541 is a medium-severity flaw (CVSS 6.4) affecting planning analytics. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

IBM Planning Analytics 2.0, and 2.1 is vulnerable to stored cross-site scripting. This vulnerability allows an authenticated user to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.1% (top 97%)
CISA exploited list	No
Weakness	CWE-79
Published	2026-10-12
Last modified	2026-10-15

Publisher (CNA): IBM Corporation · Vendor: ibm

Last updated 2026-10-15 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-10-12 23:17 UTCPublished CVE record published
2026-10-15 18:20 UTCUpdated Record last modified

ibm planning analytics DOWNGRADE

Affected: 2.0 · 2.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0

1. Check installed version

apt-cache policy planning-analytics || rpm -q planning-analytics || planning-analytics --version

2. No fixed release: DOWNGRADE to a release before 2.0 (Debian / Ubuntu)

apt-cache madison planning-analytics sudo apt install planning-analytics=<VERSION_BEFORE_2.0> sudo apt-mark hold planning-analytics

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list planning-analytics sudo dnf downgrade planning-analytics-<VERSION_BEFORE_2.0> sudo dnf versionlock add planning-analytics

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-18541?

planning analytics: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-18541 being exploited?

CVE-2026-18541 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-18541 affect?

CVE-2026-18541 affects planning analytics. Severity is medium (CVSS 6.4). IBM Planning Analytics 2.0, and 2.1 is vulnerable to stored cross-site scripting. This vulnerability allows an authenticated user to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading

How urgent is CVE-2026-18541?

Priority 23/100. No elevated risk signals yet.

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References

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