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CVE-2020-36306

Redmine before 4.0.7 and 4.1.x before 4.1.1 has XSS via the back_url field.

6.1 MediumFix available

Redmine before 4.0.7 and 4.1.x before 4.1.1 has XSS via the back_url field.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
None

Exploit likelihood

0.73%Up 0.3 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 6.1

Redmine before 4.0.7 and 4.1.x before 4.1.1 has XSS via the back_url field.

Record
CVE-2020-36306
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness
CWE-79
Updated
2026-11-02
CVE List No score

Redmine before 4.0.7 and 4.1.x before 4.1.1 has XSS via the back_url field.

Record
CVE-2020-36306
Updated
2026-11-02
EUVDEUVD-2020-23848 No score

Redmine before 4.0.7 and 4.1.x before 4.1.1 has XSS via the back_url field.

Record
EUVD-2020-23848
Updated
2026-11-03
GitHub AdvisoriesGHSA-4fxw-r56f-g632 No score

Redmine before 4.0.7 and 4.1.x before 4.1.1 has XSS via the back_url field.

Redmine before 4.0.7 and 4.1.x before 4.1.1 has XSS via the back_url field.

Record
GHSA-4fxw-r56f-g632
Weakness
CWE-79
Updated
2026-11-02
OSV 6.1

Redmine before 4.0.7 and 4.1.x before 4.1.1 has XSS via the back_url field.

Record
CVE-2020-36306
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02
OSVDEBIAN-CVE-2020-36306 6.1

Redmine before 4.0.7 and 4.1.x before 4.1.1 has XSS via the back_url field.

Record
DEBIAN-CVE-2020-36306
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02
OSVUBUNTU-CVE-2020-36306 6.1

Redmine before 4.0.7 and 4.1.x before 4.1.1 has XSS via the back_url field.

Record
UBUNTU-CVE-2020-36306
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02
OSVBIT-redmine-2020-36306 No score

Redmine before 4.0.7 and 4.1.x before 4.1.1 has XSS via the back_url field.

Record
BIT-redmine-2020-36306
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
redmine
Bitnami
 before 4.0.7, 4.1.0 up to 4.1.1
4.0.74.1.1
redmine
Debian:12
 before 4.0.7-1
4.0.7-1
redmine
Debian:13
 before 4.0.7-1
4.0.7-1
redmine
Debian:14
 before 4.0.7-1
4.0.7-1
redmine
Debian:9
From an advisory covering 10 CVEs
 before 3.3.1-4+deb9u4, plus listed versions
3.3.1-43.3.1-4+deb9u13.3.1-4+deb9u23.3.1-4+deb9u3
3.3.1-4+deb9u4
redmine
Ubuntu:16.04:LTS
 All versions, plus listed versions
3.0~20140825-83.2.0-13.2.0-33.2.1-13.2.1-23.2.1-2ubuntu0.2
 None known
redmine
Ubuntu:18.04:LTS
 All versions, plus listed versions
3.3.1-43.4.2-13.4.4-13.4.4-1ubuntu0.1
 None known
redmine
Ubuntu:20.04:LTS
 All versions, plus listed versions
4.0.4-14.0.4-34.0.6-2
 None known

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-36306 is a medium vulnerability (CVSS 6.1) in Redmine, published April 6, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.73%, the 54th percentile. Fixed in redmine 4.0.7.

References

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