CVE-2020-15231: In mapfish-print before version 3.24, a user can use the JSONP support to do a Cross-site scripting.

Q: How do I fix CVE-2020-15231?

print: upgrade to 3.24. Exact commands for each OS are on this page.

Q: Is CVE-2020-15231 being exploited?

CVE-2020-15231 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-2020-15231 affect?

CVE-2020-15231 affects print. Severity is critical (CVSS 9.3). In mapfish-print before version 3.24, a user can use the JSONP support to do a Cross-site scripting.

Q: How urgent is CVE-2020-15231?

Priority 47/100. Critical severity

This month

CRITICAL 9.3UPGRADE

CVE-2020-15231 is a critical-severity flaw (CVSS 9.3) affecting print. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In mapfish-print before version 3.24, a user can use the JSONP support to do a Cross-site scripting.

Why this priority

Critical severity

A fixed release or distro patch exists.

Risk facts

CVSS score	9.3 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.8% (top 43%)
CISA exploited list	No
Weakness	CWE-79
Published	2020-10-02
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: mapfish

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

Am I affected?

Timeline

2020-10-02 20:15 UTCPublished CVE record published
2026-06-17 02:56 UTCUpdated Record last modified

mapfish print UPGRADE

Affected: < 3.24

Fixed in: 3.24

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 3.24 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade print

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-2020-15231?

print: upgrade to 3.24. Exact commands for each OS are on this page.

Is CVE-2020-15231 being exploited?

CVE-2020-15231 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-2020-15231 affect?

CVE-2020-15231 affects print. Severity is critical (CVSS 9.3). In mapfish-print before version 3.24, a user can use the JSONP support to do a Cross-site scripting.

How urgent is CVE-2020-15231?

Priority 47/100. Critical severity

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References

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