CVE-2020-15883: A Cross-Site Scripting (XSS) vulnerability in the managedinstalls module before 2.6 for MunkiReport allows rem

Q: How do I fix CVE-2020-15883?

managedinstalls: upgrade to 2.6. Exact commands for each OS are on this page.

Q: Is CVE-2020-15883 being exploited?

CVE-2020-15883 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-2020-15883 affect?

CVE-2020-15883 affects managedinstalls. Severity is medium (CVSS 6.1). A Cross-Site Scripting (XSS) vulnerability in the managedinstalls module before 2.6 for MunkiReport allows remote attackers to inject arbitrary web script or HTML via the last two URL parameters (through which installed packages names and v

Q: How urgent is CVE-2020-15883?

Priority 38/100. No elevated risk signals yet.

Routine

MEDIUM 6.1UPGRADE

CVE-2020-15883 is a medium-severity flaw (CVSS 6.1) affecting managedinstalls. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A Cross-Site Scripting (XSS) vulnerability in the managedinstalls module before 2.6 for MunkiReport allows remote attackers to inject arbitrary web script or HTML via the last two URL parameters (through which installed packages names and versions are reported).

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.2% (top 33%)
CISA exploited list	No
Weakness	CWE-79
Published	2020-07-23
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: managedinstalls project

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

Am I affected?

Timeline

2020-07-23 14:15 UTCPublished CVE record published
2026-06-17 02:57 UTCUpdated Record last modified

managedinstalls project managedinstalls UPGRADE

Affected: < 2.6

Fixed in: 2.6

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 2.6 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade managedinstalls

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-2020-15883?

managedinstalls: upgrade to 2.6. Exact commands for each OS are on this page.

Is CVE-2020-15883 being exploited?

CVE-2020-15883 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-2020-15883 affect?

CVE-2020-15883 affects managedinstalls. Severity is medium (CVSS 6.1). A Cross-Site Scripting (XSS) vulnerability in the managedinstalls module before 2.6 for MunkiReport allows remote attackers to inject arbitrary web script or HTML via the last two URL parameters (through which installed packages names and v

How urgent is CVE-2020-15883?

Priority 38/100. No elevated risk signals yet.

References

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