CVE-2016-2171: The User Manager service in Apache Jetspeed before 2.3.1 does not properly restrict access using Jetspeed Secu

Q: How do I fix CVE-2016-2171?

jetspeed: upgrade to newer than 2.3.0. Exact commands for each OS are on this page.

Q: Is CVE-2016-2171 being exploited?

CVE-2016-2171 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2016-2171 affect?

CVE-2016-2171 affects jetspeed. Severity is high (CVSS 7.5). The User Manager service in Apache Jetspeed before 2.3.1 does not properly restrict access using Jetspeed Security, which allows remote attackers to (1) add, (2) edit, or (3) delete users via the REST API.

Q: How urgent is CVE-2016-2171?

Priority 61/100. High severity; EPSS top 1%: very likely to be exploited; Remotely exploitable, no login, no user action; On your watchlist

This week

HIGH 7.5REMOTEWATCHLISTUPGRADE

CVE-2016-2171 is a high-severity flaw (CVSS 7.5) affecting jetspeed. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The User Manager service in Apache Jetspeed before 2.3.1 does not properly restrict access using Jetspeed Security, which allows remote attackers to (1) add, (2) edit, or (3) delete users via the REST API.

Why this priority

High severity
EPSS top 1%: very likely to be exploited
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	42.7% (top 1%)
CISA exploited list	No
Weakness	CWE-264
Published	2016-04-11
Last modified	2026-06-17

Publisher (CNA): Red Hat, Inc. · Vendor: apache

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2016-04-11 14:59 UTCPublished CVE record published
2026-06-17 00:43 UTCUpdated Record last modified

apache jetspeed UPGRADE

Affected: <= 2.3.0

Fixed in: newer than 2.3.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy jetspeed || rpm -q jetspeed || jetspeed --version

2. UPGRADE to newer than 2.3.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade jetspeed

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade jetspeed

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2016-2171?

jetspeed: upgrade to newer than 2.3.0. Exact commands for each OS are on this page.

Is CVE-2016-2171 being exploited?

CVE-2016-2171 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2016-2171 affect?

CVE-2016-2171 affects jetspeed. Severity is high (CVSS 7.5). The User Manager service in Apache Jetspeed before 2.3.1 does not properly restrict access using Jetspeed Security, which allows remote attackers to (1) add, (2) edit, or (3) delete users via the REST API.

How urgent is CVE-2016-2171?

Priority 61/100. High severity; EPSS top 1%: very likely to be exploited; Remotely exploitable, no login, no user action; On your watchlist

Related CVEs

CVE-2022-32533 CRITICAL 9.8 DOWNGRADE Apache Jetspeed-2 does not sufficiently filter untrusted user input by default leading to a number of issues i
CVE-2016-0712 MEDIUM 6.1 UPGRADE Cross-site scripting (XSS) vulnerability in Apache Jetspeed before 2.3.1 allows remote attackers to inject arb
CVE-2016-0711 MEDIUM 6.1 UPGRADE Multiple cross-site scripting (XSS) vulnerabilities in Apache Jetspeed before 2.3.1 allow remote attackers to
CVE-2016-0710 HIGH 8.8 UPGRADE Multiple SQL injection vulnerabilities in the User Manager service in Apache Jetspeed before 2.3.1 allow remot
CVE-2016-0709 HIGH 7.2 UPGRADE Directory traversal vulnerability in the Import/Export function in the Portal Site Manager in Apache Jetspeed

References

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