How severe is CVE-2021-20543?

CVE-2021-20543 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-20543 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-20543?

CVE-2021-20543 primarily affects Ibm Jazz Team Server. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-20543?

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

When was CVE-2021-20543 published?

CVE-2021-20543 was published on 2022-06-24 and last updated on 2026-06-17.

CVE-2021-20543

CVE-2021-20543 is a medium-severity vulnerability in Ibm Jazz Team Server with a CVSS 3.x base score of 5.4. 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: Medium (CVSS 3.x base score 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Ibm Jazz Team Server
Published: 2022-06-24
Last modified: 2026-06-17

Description

IBM Jazz Team Server 6.0.6, 6.0.6.1, 7.0, 7.0.1, and 7.0.2 is vulnerable to HTML injection. A remote attacker could inject malicious HTML code, which when viewed, would be executed in the victim's Web browser within the security context of the hosting site. IBM X-Force ID: 198929.

Frequently asked questions

What is CVE-2021-20543?: IBM Jazz Team Server 6.0.6, 6.0.6.1, 7.0, 7.0.1, and 7.0.2 is vulnerable to HTML injection. A remote attacker could inject malicious HTML code, which when viewed, would be executed in the victim's Web browser within the security context of the hosting site. IBM X-Force ID: 198929.
How severe is CVE-2021-20543?: CVE-2021-20543 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-20543 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-20543?: CVE-2021-20543 primarily affects Ibm Jazz Team Server. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-20543?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-20543 published?: CVE-2021-20543 was published on 2022-06-24 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:a:ibm:jazz_team_server:6.0.6:*:*:*:*:*:*:*
cpe:2.3:a:ibm:jazz_team_server:6.0.6.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:jazz_team_server:7.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:jazz_team_server:7.0.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:jazz_team_server:7.0.2:*:*:*:*:*:*:*

More vulnerabilities in Ibm Jazz Team Server

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