CVE-2020-11887: svg2png 4.1.1 allows XSS with resultant SSRF via JavaScript inside an SVG document.

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MEDIUM 6.1DOWNGRADE

CVE-2020-11887 is a medium-severity flaw (CVSS 6.1) affecting svg2png. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

svg2png 4.1.1 allows XSS with resultant SSRF via JavaScript inside an SVG document.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.7% (top 47%)
CISA exploited list	No
Weakness	CWE-79
Published	2020-04-17
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: svg2png project

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

Am I affected?

Timeline

2020-04-17 21:15 UTCPublished CVE record published
2026-06-17 02:50 UTCUpdated Record last modified

svg2png project svg2png DOWNGRADE

Affected: 4.1.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.1.1

1. Check installed version

apt-cache policy svg2png || rpm -q svg2png || svg2png --version

2. No fixed release: DOWNGRADE to a release before 4.1.1 (Debian / Ubuntu)

apt-cache madison svg2png sudo apt install svg2png=<VERSION_BEFORE_4.1.1> sudo apt-mark hold svg2png

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list svg2png sudo dnf downgrade svg2png-<VERSION_BEFORE_4.1.1> sudo dnf versionlock add svg2png

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2020-11887?

svg2png: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-11887 being exploited?

CVE-2020-11887 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-2020-11887 affect?

CVE-2020-11887 affects svg2png. Severity is medium (CVSS 6.1). svg2png 4.1.1 allows XSS with resultant SSRF via JavaScript inside an SVG document.

How urgent is CVE-2020-11887?

Priority 40/100. Public exploit reference

References

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