How severe is CVE-2021-20526?

CVE-2021-20526 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2021-20526 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-20526?

CVE-2021-20526 affects Ibm Planning Analytics. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-20526?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-20526 published?

CVE-2021-20526 was published on 2021-10-27 and last updated on 2026-06-17.

CVE-2021-20526

CVE-2021-20526 is a medium-severity vulnerability in Ibm Planning Analytics with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-732.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: Ibm Planning Analytics
Published: 2021-10-27
Last modified: 2026-06-17

Description

IBM Planning Analytics 2.0 could allow a remote attacker to obtain sensitive information, caused by the failure to set the HTTPOnly flag. A remote attacker could exploit this vulnerability to obtain sensitive information from the cookie. IBM X-Force ID: 198755.

Frequently asked questions

What is CVE-2021-20526?: IBM Planning Analytics 2.0 could allow a remote attacker to obtain sensitive information, caused by the failure to set the HTTPOnly flag. A remote attacker could exploit this vulnerability to obtain sensitive information from the cookie. IBM X-Force ID: 198755.
How severe is CVE-2021-20526?: CVE-2021-20526 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2021-20526 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-20526?: CVE-2021-20526 affects Ibm Planning Analytics. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-20526?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-20526 published?: CVE-2021-20526 was published on 2021-10-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ibm:planning_analytics:2.0:*:*:*:*:*:*:*

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