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CVE-2020-11712: Open Upload through 0.4.3 allows XSS via index.php?action=u and the filename field.

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MEDIUM 6.1UPGRADE

CVE-2020-11712 is a medium-severity flaw (CVSS 6.1) affecting open upload. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Open Upload through 0.4.3 allows XSS via index.php?action=u and the filename field.

Why this priority

  • Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score6.1 (Medium)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionRequired
EPSS exploit chance1.1% (top 36%)
CISA exploited listNo
WeaknessCWE-79
Published2020-04-12
Last modified2026-06-17
Publisher (CNA): MITRE · Vendor: open upload project

Share: LinkedIn · X · Reddit

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

Am I affected?

Timeline

open upload project open upload UPGRADE
Affected: <= 0.4.3
Fixed in: newer than 0.4.3
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy open-upload || rpm -q open-upload || open-upload --version
2. UPGRADE to newer than 0.4.3 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade open-upload
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade open-upload
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-2020-11712?

open upload: upgrade to newer than 0.4.3. Exact commands for each OS are on this page.

Is CVE-2020-11712 being exploited?

CVE-2020-11712 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-2020-11712 affect?

CVE-2020-11712 affects open upload. Severity is medium (CVSS 6.1). Open Upload through 0.4.3 allows XSS via index.php?action=u and the filename field.

How urgent is CVE-2020-11712?

Priority 42/100. Public exploit reference

Software pages

PHP vulnerabilities

References

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