CVE-2020-1941

In Apache ActiveMQ 5.0.0 to 5.15.11, the webconsole admin GUI is open to XSS, in the view that lists the contents of a queue.

Published: 2020-05-14 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2020-1941 is rated Moderate Risk (55.8/100): CVSS Medium severity, with high exploitation likelihood (EPSS 6.21%, 93th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2020-1941

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-16 7.18% 6.21% -0.97%
2 2026-06-15 5.47% 7.18% +1.72%
3 2026-05-05 5.47%

Full EPSS history (23 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-1941

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.1 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
2.8 2.7 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
8.6 2.9 [email protected]

Weakness enumeration for CVE-2020-1941

GitHub Security Advisory for CVE-2020-1941

GHSA-cc94-3v9c-7rm8 · Severity: medium · Ecosystem: maven — Apache ActiveMQ webconsole admin GUI is open to XSS

OS Trackers for CVE-2020-1941

vendor priority summary link
debian unimportant CVE-2020-1941 unimportant priority: Debian including 1 source packages (activemq), 4 status rows across 4 suites (bookworm, bullseye, sid, trixie): resolved 4. https://security-tracker.debian.org/tracker/CVE-2020-1941
redhat medium https://access.redhat.com/security/cve/CVE-2020-1941
ubuntu medium CVE-2020-1941 medium priority: Ubuntu including 1 source packages (activemq), 17 status rows across 17 suites (bionic, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): ignored 9, needs-triage 7, DNE 1. https://ubuntu.com/security/CVE-2020-1941

Affected software / configurations for CVE-2020-1941

Vendor Product Version Raw CPE
apache activemq >= 5.0.0, <= 5.15.11 cpe:2.3:a:apache:activemq:*:*:*:*:*:*:*:*
oracle communications_diameter_signaling_router >= 8.0.0, <= 8.2.2 cpe:2.3:a:oracle:communications_diameter_signaling_router:*:*:*:*:*:*:*:*
oracle communications_element_manager 8.1.1 cpe:2.3:a:oracle:communications_element_manager:8.1.1:*:*:*:*:*:*:*
oracle communications_element_manager 8.2.0 cpe:2.3:a:oracle:communications_element_manager:8.2.0:*:*:*:*:*:*:*
oracle communications_element_manager 8.2.1 cpe:2.3:a:oracle:communications_element_manager:8.2.1:*:*:*:*:*:*:*
oracle communications_session_report_manager 8.1.1 cpe:2.3:a:oracle:communications_session_report_manager:8.1.1:*:*:*:*:*:*:*
oracle communications_session_report_manager 8.2.0 cpe:2.3:a:oracle:communications_session_report_manager:8.2.0:*:*:*:*:*:*:*
oracle communications_session_report_manager 8.2.1 cpe:2.3:a:oracle:communications_session_report_manager:8.2.1:*:*:*:*:*:*:*
oracle communications_session_route_manager 8.1.1 cpe:2.3:a:oracle:communications_session_route_manager:8.1.1:*:*:*:*:*:*:*
oracle communications_session_route_manager 8.2.0 cpe:2.3:a:oracle:communications_session_route_manager:8.2.0:*:*:*:*:*:*:*
oracle communications_session_route_manager 8.2.1 cpe:2.3:a:oracle:communications_session_route_manager:8.2.1:*:*:*:*:*:*:*
oracle enterprise_repository 11.1.1.7.0 cpe:2.3:a:oracle:enterprise_repository:11.1.1.7.0:*:*:*:*:*:*:*
oracle flexcube_private_banking 12.0.0 cpe:2.3:a:oracle:flexcube_private_banking:12.0.0:*:*:*:*:*:*:*
oracle flexcube_private_banking 12.1.0 cpe:2.3:a:oracle:flexcube_private_banking:12.1.0:*:*:*:*:*:*:*

References for CVE-2020-1941

URL Tags
http://activemq.apache.org/security-advisories.data/CVE-2020-1941-announcement.txt Vendor Advisory
https://lists.apache.org/thread.html/r946488fb942fd35c6a6e0359f52504a558ed438574a8f14d36d7dcd7%40%3Ccommits.activemq.apache.org%3E
https://lists.apache.org/thread.html/rb2fd3bf2dce042e0ab3f3c94c4767c96bb2e7e6737624d63162df36d%40%3Ccommits.activemq.apache.org%3E
https://lists.apache.org/thread.html/re4672802b0e5ed67c08c9e77057d52138e062f77cc09581b723cf95a%40%3Ccommits.activemq.apache.org%3E
https://www.oracle.com//security-alerts/cpujul2021.html Third Party Advisory
https://www.oracle.com/security-alerts/cpuApr2021.html Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2020.html Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2020.html Third Party Advisory
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