How severe is CVE-2021-22528?

CVE-2021-22528 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-22528 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22528?

CVE-2021-22528 affects Microfocus Access Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-22528?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-22528 published?

CVE-2021-22528 was published on 2021-09-13 and last updated on 2026-06-17.

CVE-2021-22528

CVE-2021-22528 is a high-severity vulnerability in Microfocus Access Manager with a CVSS 3.x base score of 8.0. 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-79.

Key facts

Severity: High (CVSS 3.x base score 8.0)
CVSS v2: 3.5
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Microfocus Access Manager
Published: 2021-09-13
Last modified: 2026-06-17

Description

Reflected Cross Site Scripting (XSS) vulnerability in NetIQ Access Manager prior to 5.0.1 and 4.5.4

Frequently asked questions

What is CVE-2021-22528?: Reflected Cross Site Scripting (XSS) vulnerability in NetIQ Access Manager prior to 5.0.1 and 4.5.4
How severe is CVE-2021-22528?: CVE-2021-22528 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-22528 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22528?: CVE-2021-22528 affects Microfocus Access Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-22528?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-22528 published?: CVE-2021-22528 was published on 2021-09-13 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:microfocus:access_manager:*:*:*:*:*:*:*:*

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