CVE-2020-36307

CVE-2020-36307 is a medium-severity vulnerability in Redmine 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% (49th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Redmine
Published: 2021-04-06
Last modified: 2026-06-17

Description

Redmine before 4.0.7 and 4.1.x before 4.1.1 has stored XSS via textile inline links.

Frequently asked questions

What is CVE-2020-36307?: Redmine before 4.0.7 and 4.1.x before 4.1.1 has stored XSS via textile inline links.
How severe is CVE-2020-36307?: CVE-2020-36307 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-2020-36307 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-36307?: CVE-2020-36307 primarily affects Redmine. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-36307?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-36307 published?: CVE-2020-36307 was published on 2021-04-06 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:redmine:redmine:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

More vulnerabilities in Redmine

CVE-2021-30164 — Critical (CVSS 9.8): Redmine before 4.0.8 and 4.1.x before 4.1.2 allows attackers to bypass the add_issue_notes permission requirement by…
CVE-2017-18026 — High (CVSS 8.8): Redmine before 3.2.9, 3.3.x before 3.3.6, and 3.4.x before 3.4.4 does not block the --config and --debugger flags to…
CVE-2022-44030 — High (CVSS 7.5): Redmine 5.x before 5.0.4 allows downloading of file attachments of any Issue or any Wiki page due to insufficient…
CVE-2021-37156 — High (CVSS 7.5): Redmine 4.2.0 and 4.2.1 allow existing user sessions to continue upon enabling two-factor authentication for the user's…
CVE-2021-31863 — High (CVSS 7.5): Insufficient input validation in the Git repository integration of Redmine before 4.0.9, 4.1.x before 4.1.3, and 4.2.x…
CVE-2021-30163 — High (CVSS 7.5): Redmine before 4.0.8 and 4.1.x before 4.1.2 allows attackers to discover the names of private projects if issue-journal…

All CVEs affecting Redmine →

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 →