How severe is CVE-2021-41310?

CVE-2021-41310 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-41310 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-41310?

CVE-2021-41310 affects Atlassian Jira Software Data Center. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-41310?

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

When was CVE-2021-41310 published?

CVE-2021-41310 was published on 2021-11-01 and last updated on 2026-06-17.

CVE-2021-41310

CVE-2021-41310 is a medium-severity vulnerability in Atlassian Jira Software Data Center with a CVSS 3.x base score of 6.1. 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 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Atlassian Jira Software Data Center
Published: 2021-11-01
Last modified: 2026-06-17

Description

Affected versions of Atlassian Jira Server and Data Center allow anonymous remote attackers to inject arbitrary HTML or JavaScript via a Cross-Site Scripting (XSS) vulnerability in the Associated Projects feature (/secure/admin/AssociatedProjectsForCustomField.jspa). The affected versions are before version 8.5.19, from version 8.6.0 before 8.13.11, and from version 8.14.0 before 8.19.1.

Frequently asked questions

What is CVE-2021-41310?: Affected versions of Atlassian Jira Server and Data Center allow anonymous remote attackers to inject arbitrary HTML or JavaScript via a Cross-Site Scripting (XSS) vulnerability in the Associated Projects feature (/secure/admin/AssociatedProjectsForCustomField.jspa). The affected versions are before version 8.5.19, from version 8.6.0 before 8.13.11, and from version 8.14.0 before 8.19.1.
How severe is CVE-2021-41310?: CVE-2021-41310 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-41310 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-41310?: CVE-2021-41310 affects Atlassian Jira Software Data Center. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-41310?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-41310 published?: CVE-2021-41310 was published on 2021-11-01 and last updated on 2026-06-17.

References

https://jira.atlassian.com/browse/JRASERVER-72800

Affected products (1)

cpe:2.3:a:atlassian:jira_software_data_center:*:*:*:*:*:*:*:*

More vulnerabilities in Atlassian Jira Software Data Center

CVE-2020-14172 — Critical (CVSS 9.8): This issue exists to document that a security improvement in the way that Jira Server and Data Center use velocity…
CVE-2019-20409 — Critical (CVSS 9.8): The way in which velocity templates were used in Atlassian Jira Server and Data Center prior to version 8.8.0 allowed…
CVE-2021-41311 — High (CVSS 7.5): Affected versions of Atlassian Jira Server and Data Center allow attackers with access to an administrator account that…
CVE-2021-41307 — High (CVSS 7.5): Affected versions of Atlassian Jira Server and Data Center allow unauthenticated remote attackers to view the names of…
CVE-2021-41306 — High (CVSS 7.5): Affected versions of Atlassian Jira Server and Data Center allow anonymous remote attackers to view private project and…
CVE-2021-41305 — High (CVSS 7.5): Affected versions of Atlassian Jira Server and Data Center allow anonymous remote attackers to view the names of…

All CVEs affecting Atlassian Jira Software Data Center →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →